Apache Syncope

URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Apache Syncope
CVE-2026-73191 6.1 - Medium - September 14, 2026

URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Apache Syncope. When the Syncope SRA is configured for CAS authentication, the target Apereo CAS instance's URL is calculated by unconditionally looking at client-supplied forwarded HTTP headers. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

Open Redirect

Improper Encoding or Escaping of Output vulnerability in Apache Syncope
CVE-2026-73195 7.3 - High - September 14, 2026

Improper Encoding or Escaping of Output vulnerability in Apache Syncope. Authenticated users can store a spreadsheet formula payload in one of their own plain attributes. When such users are included in a CSV export and the generated CSV file is opened by a spreadsheet application, the formula may be executed. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

Output Sanitization

Incorrect Authorization vulnerability in Apache Syncope
CVE-2026-73236 7.5 - High - September 14, 2026

Incorrect Authorization vulnerability in Apache Syncope. Delegated administration security checks are based on Realm hierarchy and enforced via prefix matches. Due to incorrect implementation, two sibling Realms whose names begin with the same string cannot be correctly distinguished, resulting in incorrect authorization. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

AuthZ

Incorrect Authorization vulnerability in Apache Syncope
CVE-2026-73370 9.8 - Critical - September 14, 2026

Incorrect Authorization vulnerability in Apache Syncope. Delegated administration security checks performed by Reconciliation service's pull and push, being incomplete, could accept calls by administrator not provided with adequate entitlements. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

AuthZ

Apache Syncope < 4.0.8 / < 4.1.3: Sensitive Data Exposure via REST
CVE-2026-73178 7.5 - High - September 14, 2026

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Syncope. An administrator with adequate entitlements can get access via REST to the list of existing Access Tokens, including their signed JWT body. These values can be then used to perform further REST requests, impersonating users with higher administration entitlements. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

Information Disclosure

Apache Syncope PrivEsc via Delegation 3.0.x-4.1.x
CVE-2026-73470 9.8 - Critical - September 14, 2026

Improper Privilege Management vulnerability in Apache Syncope. Delegations can be created or updated with Roles not owned by the delegating User, or not for the same Realm subtree under the delegation management was granted for. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

Improper Privilege Management

Apache Syncope Auth Bypass via Empty Realms Filter 3.0.0-M0 to 4.1.2
CVE-2026-73579 9.8 - Critical - September 14, 2026

Incorrect Authorization vulnerability in Apache Syncope. Any search requests are transformed into SQL, Neo4J or Elasticsearch / Opensearch queries, depending on the actual deployment configuration. An important component of such transformation is the Realms filter, which ensures that the search results are matching the requester's permissions. For non-recursive search requests it is possible that such Realms filter is rendered as empty, thus voiding any restriction on requester privileges. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

AuthZ

Apache Syncope 3.x,4.x Credential Leakage in Audit Events (CVE-2026-75015)
CVE-2026-75015 4.9 - Medium - September 14, 2026

Insufficiently Protected Credentials vulnerability in Apache Syncope. Audit events, when sent to the configured store, are not sufficiently masked for the sensitive values they might carry on their payloads, thus allowing administrators to access such sensitive values. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

Insufficiently Protected Credentials

Apache Syncope v4.0.7: Unchecked Authorization Enables Mass (De)Provision
CVE-2026-75030 9.8 - Critical - September 14, 2026

Missing Authorization vulnerability in Apache Syncope. An administrator with task execution entitlements might be able to mass (de)provision group members, regardless of their group-related administration capabilities. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

AuthZ

Apache Syncope 3.x/4.x SQLI via Untrusted entityKey/opEvent; fixed 4.0.8
CVE-2026-77051 9.8 - Critical - September 14, 2026

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Apache Syncope. An administrator with adequate entitlements can achieve execution of arbitrary SQL via stacked queries, leveraging unsanitized entityKey and opEvent parameters. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

SQL Injection

Incorrect Auth in Apache Syncope 3.x-4.1 REST (CVE-2026-73668)
CVE-2026-73668 9.8 - Critical - September 14, 2026

Incorrect Authorization vulnerability in Apache Syncope. An administrator with adequate entitlements in a given Realm may be able to read via REST the full Connector configuration, confidential properties included, scoped in another Realm and thus be able to effectively duplicate such Connector instance into the Realm they have administration rights for. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

AuthZ

Apache Syncope 4.1.2 Code Injection via Groovy Security Bypass
CVE-2026-77147 6.5 - Medium - September 14, 2026

Improper Control of Generation of Code ('Code Injection') vulnerability in Apache Syncope. An administrator with adequate entitlements for Implementations can create a malicious Groovy Command class containing untrusted code in their CommandArgs static implementation, bypassing the Groovy security sandbox. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

Code Injection

Incorrect Authorization vulnerability in Apache Syncope
CVE-2026-77181 9.8 - Critical - September 14, 2026

Incorrect Authorization vulnerability in Apache Syncope. An administrator with ClientApp's update entitlement is unable to perform the related operation, while ClientApp's create entitlement is checked both for create and update operations on ClientApp. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

AuthZ

Exposure of sensitive information through data queries vulnerability in Apache Syncope
CVE-2026-77883 4.9 - Medium - September 14, 2026

Exposure of sensitive information through data queries vulnerability in Apache Syncope. An administrator with adequate entitlements for Derived Schemas can create a malicious JEXL expression which allows any administrator with sufficient entitlements for User read to access LinkedAccount's (if present) or Manager's (if defined) sensitive information, possibly including hashed credentials. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

Exposure of Sensitive Information Through Data Queries

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Syncope
CVE-2026-78318 6.1 - Medium - September 14, 2026

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Syncope. The notification message, as optionally shown by Console's and Enduser's login pages can be instructed to display HTML tags with unsafe JS inline, via malicious HTTP link generation. This issue affects Apache Syncope: from 4.0.4 through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

XSS

Incorrect privilege assignment vulnerability in Apache Syncope
CVE-2026-78330 9.8 - Critical - September 14, 2026

Incorrect privilege assignment vulnerability in Apache Syncope. When the configured JWKS settings for internal JWT authentication are disclosed (at least protocol and key), an attacker can obtain admin privileges after completing a successful authentication and obtaining a valid low-privileges JWT. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

Incorrect Privilege Assignment

Insertion of sensitive information into sent data vulnerability in Apache Syncope
CVE-2026-78336 7.5 - High - September 14, 2026

Insertion of sensitive information into sent data vulnerability in Apache Syncope. Any authenticated user can query for the list of available OIDC providers configured for SSO with Console and Enduser. The returned payload contains all configuration settings, including client secrets, regardless of the entitlements owned by the caller. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

Insertion of Sensitive Information Into Sent Data

Apache Syncope SQLi via unsanitized sort clause in Task Search (prior to 4.1.3)
CVE-2026-82232 9.8 - Critical - September 14, 2026

Improper neutralization of special elements used in an SQL command ('SQL injection') vulnerability in Apache Syncope. An administrator with adequate entitlements can achieve execution of arbitrary SQL via stacked queries, leveraging unsanitized sort clauses for Task search. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

SQL Injection

Neo4j Cypher Injection in Apache Syncope (v3.0.0M0 v4.1.2) upgrade to 4.0.8/4.1.3
CVE-2026-86460 9.8 - Critical - September 14, 2026

Cypher injection vulnerability in the Neo4j persistence layer when processing some FIQL search conditions. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

SQL Injection

Apache Syncope Log Exposure via AES Key Padding
CVE-2026-87779 7.5 - High - September 14, 2026

Insertion of sensitive information into log file vulnerability in Apache Syncope. When AES key of non-standard length (not 16/24/32 bytes) is configured, Syncope will pad the provided value with random characters. The resulting key value is logged. This issue affects Apache Syncope: from 3.0.15 through 3.0.16, from 4.0.3 through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

Insertion of Sensitive Information into Log File

Apache Syncope Auth Bypass via JWKS Spoofing (v3.x, v4.0.x, v4.1.x)
CVE-2026-87785 9.1 - Critical - September 14, 2026

Authentication bypass by spoofing vulnerability in Apache Syncope. When the configured JWKS settings for internal JWT authentication are disclosed (at least protocol and key), an attacker can spoof another user's privileges after completing a successful authentication and obtaining a valid JWT. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

Authentication Bypass by Spoofing

Apache Syncope Improper JWT Signature Verification (3.0.0-M0~4.1.2)
CVE-2026-87802 9.1 - Critical - September 14, 2026

Improper verification of cryptographic signature vulnerability in Apache Syncope. When SRA is configured for OAuth 2.0 without JWKS set URI assigned, an attacker can forge arbitrary JWTs to impersonate any user identity and permissions, gaining full access to services proxied by SRA. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

Improper Verification of Cryptographic Signature

Apache Syncope SSRF via Connectors, pre-4.0.7/4.1.2 (Low Priv)
CVE-2026-62418 8.1 - High - July 20, 2026

Low-privileged authenticated Server-Side Request Forgery (SSRF) vulnerability in Apache Syncope via Connectors and Resources check. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.6, from 4.1.0-M0 through 4.1.1. Users are recommended to upgrade to version 4.0.7 / 4.1.2, which fix this issue.

SSRF

Apache Syncope Privilege Escalation via User Workflow 3.x-4.1.x
CVE-2026-62183 9.8 - Critical - July 20, 2026

Improper Privilege Management vulnerability in Apache Syncope. When: * the all-Java user workflow adapter is configured, or * the Flowable user workflow adapter is configured, bearing a BPMN definition not requiring admin approval for user self registration of self update requests the following scenario could happen. A REST API call can allow the user to grant themselves one or more of defined Roles, thus gaining their Entitlements and becoming in fact an administrator; the actual Entitlements gained depend on the Roles that are effectively defined on the specific Syncope deployment. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.6, from 4.1.0-M0 through 4.1.1. Users are recommended to upgrade to version 4.0.7 / 4.1.2, which fix this issue.

Improper Privilege Management

Apache Syncope SQLi via Unsanitized Sort Params (v3.x, v4.0.x, v4.1.x)
CVE-2026-57308 9.8 - Critical - July 20, 2026

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Apache Syncope. An administrator with adequate entitlements can achieve execution of arbitrary SQL via stacked queries, leveraging unsanitized sort parameters. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.6, from 4.1.0-M0 through 4.1.1. Users are recommended to upgrade to version 4.0.7 / 4.1.2, which fix this issue.

SQL Injection

Apache Syncope RCE via Groovy in connectors (pre-4.1.2)
CVE-2026-53421 9.8 - Critical - July 20, 2026

Improper Isolation or Compartmentalization vulnerability in Apache Syncope. An administrator with adequate entitlements can achieve remote code execution through the connector subsystem by relying on scripted connectors' (REST and SQL) capability to run Groovy scripts. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.6, from 4.1.0-M0 through 4.1.1. Users are recommended to upgrade to version 4.0.7 / 4.1.2, which fix this issue by hardening the Groovy security sandbox.

Separation of Privilege

Apache Syncope 3.x-4.1.x Improper Isolation: Unrestricted Groovy Script Exec
CVE-2026-53405 9.8 - Critical - July 20, 2026

Improper Isolation or Compartmentalization vulnerability in Apache Syncope. An administrator with adequate entitlements can import arbitrary BPMN process definitions via the REST API and then start the process. When a BPMN process containing a Groovy scriptTask is imported and started, the Groovy script is executed directly on the server, with no sandbox. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.6, from 4.1.0-M0 through 4.1.1. Users are recommended to upgrade to version 4.0.7 / 4.1.2, which fix this issue by wrapping Flowable's Groovy scriptTasks with security sandbox.

Separation of Privilege

Apache Syncope 3.x4.1.x Groovy Sandbox Bypass until 4.0.7/4.1.2
CVE-2026-63071 9.8 - Critical - July 20, 2026

Improper Isolation or Compartmentalization vulnerability in Apache Syncope. An administrator with adequate entitlements for Implementations can create a malicious Groovy class containing untrusted code bypassing the Groovy security sandbox. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.6, from 4.1.0-M0 through 4.1.1. Users are recommended to upgrade to version 4.0.7 / 4.1.2, which fix this issue by tightening the Groovy security sandbox.

Separation of Privilege

Apache Syncope Info Leak via JEXL in Derived Schemas 3.0-4.1 (fixed 4.0.6/4.1.1)
CVE-2026-42797 4.9 - Medium - May 25, 2026

Exposure of Sensitive Information Through Data Queries vulnerability in Apache Syncope. An administrator with adequate entitlements for Derived Schemas can create a malicious JEXL expression which allows any administrator with sufficient entitlements for User read to access User-related security-sensitive information. This issue affects Apache Syncope: 3.0 through 3.0.16, 4.0 through 4.0.5, 4.1.0. Users are recommended to upgrade to version 4.0.6 / 4.1.1, which fix this issue by further restricting the JEXL expression definition.

Exposure of Sensitive Information Through Data Queries

Apache Syncope 3.0-4.1.0: Improper Isolation via Groovy Static Init (fixed 4.1.1)
CVE-2026-42782 7.2 - High - May 25, 2026

Improper Isolation or Compartmentalization vulnerability in Apache Syncope. An administrator with adequate entitlements for Implementations can create a malicious Groovy class containing untrusted code reaching a non-sandboxed execution path via the class static initializer. This issue affects Apache Syncope: 3.0 through 3.0.16, 4.0 through 4.0.5, 4.1.0. Users are recommended to upgrade to version 4.0.6 / 4.1.1, which fix this issue by forcing even the static initializer in Groovy code to run in a sandbox.

Separation of Privilege

XSS Vulnerability in Apache Syncope Enduser Login (3.0-3.0.15, 4.0-4.0.3)
CVE-2026-23794 6.8 - Medium - February 03, 2026

Reflected XSS in Apache Syncope's Enduser Login page. An attacker that tricks a legitimate user into clicking a malicious link and logging in to Syncope Enduser could steal that user's credentials. This issue affects Apache Syncope: from 3.0 through 3.0.15, from 4.0 through 4.0.3. Users are recommended to upgrade to version 3.0.16 / 4.0.4, which fix this issue.

XSS

Apache Syncope Console XXE Vulnerability (3.0-3.0.15,4.0-4.0.3)
CVE-2026-23795 4.9 - Medium - February 03, 2026

Improper Restriction of XML External Entity Reference vulnerability in Apache Syncope Console. An administrator with adequate entitlements to create or edit Keymaster parameters via Console can construct malicious XML text to launch an XXE attack, thereby causing sensitive data leakage occurs. This issue affects Apache Syncope: from 3.0 through 3.0.15, from 4.0 through 4.0.3. Users are recommended to upgrade to version 3.0.16 / 4.0.4, which fix this issue.

XXE

Apache Syncope AES Hard-coded Key Exposes User Passwords (fixed 3.0.15/4.0.3)
CVE-2025-65998 7.5 - High - November 24, 2025

Apache Syncope can be configured to store the user password values in the internal database with AES encryption, though this is not the default option. When AES is configured, the default key value, hard-coded in the source code, is always used. This allows a malicious attacker, once obtained access to the internal database content, to reconstruct the original cleartext password values. This is not affecting encrypted plain attributes, whose values are also stored using AES encryption. Users are recommended to upgrade to version 3.0.15 / 4.0.3, which fix this issue.

Use of Hard-coded Cryptographic Key

Apache Syncope RCE via Unsandboxed Groovy Code (Pre-3.0.14 / 4.0.2)
CVE-2025-57738 7.2 - High - October 20, 2025

Apache Syncope offers the ability to extend / customize the base behavior on every deployment by allowing to provide custom implementations of a few Java interfaces; such implementations can be provided either as Java or Groovy classes, with the latter being particularly attractive as the machinery is set for runtime reload. Such a feature has been available for a while, but recently it was discovered that a malicious administrator can inject Groovy code that can be executed remotely by a running Apache Syncope Core instance. Users are recommended to upgrade to version 3.0.14 / 4.0.2, which fix this issue by forcing the Groovy code to run in a sandbox.

Separation of Privilege

Apache Syncope 3.0.x XSS via incomplete HTML tags in Console & Enduser
CVE-2024-45031 - October 24, 2024

When editing objects in the Syncope Console, incomplete HTML tags could be used to bypass HTML sanitization. This made it possible to inject stored XSS payloads which would trigger for other users during ordinary usage of the application. XSS payloads could also be injected in Syncope Enduser when editing Personal Information or User Requests: such payloads would trigger for administrators in Syncope Console, thus enabling session hijacking. Users are recommended to upgrade to version 3.0.9, which fixes this issue.

XSS

Apache Syncope UI XSS prior to v3.0.8
CVE-2024-38503 5.4 - Medium - July 22, 2024

When editing a user, group or any object in the Syncope Console, HTML tags could be added to any text field and could lead to potential exploits. The same vulnerability was found in the Syncope Enduser, when editing Personal Information or User Requests. Users are recommended to upgrade to version 3.0.8, which fixes this issue.

XSS

In Apache Syncope 2.1.X releases prior to 2.1.7, when the Flowable extension is enabled, an administrator with workflow entitlements
CVE-2020-11977 - September 15, 2020

In Apache Syncope 2.1.X releases prior to 2.1.7, when the Flowable extension is enabled, an administrator with workflow entitlements can use Shell Service Tasks to perform malicious operations, including but not limited to file read, file write, and code execution.

It was found that the Apache Syncope EndUser UI login page prio to 2.0.15 and 2.1.6 reflects the successMessage parameters
CVE-2019-17557 - May 04, 2020

It was found that the Apache Syncope EndUser UI login page prio to 2.0.15 and 2.1.6 reflects the successMessage parameters. By this mean, a user accessing the Enduser UI could execute javascript code from URL query string.

Vulnerability to Server-Side Template Injection on Mail templates for Apache Syncope 2.0.X releases prior to 2.0.15
CVE-2020-1961 9.8 - Critical - May 04, 2020

Vulnerability to Server-Side Template Injection on Mail templates for Apache Syncope 2.0.X releases prior to 2.0.15, 2.1.X releases prior to 2.1.6, enabling attackers to inject arbitrary JEXL expressions, leading to Remote Code Execution (RCE) was discovered.

Injection

A Server-Side Template Injection was identified in Apache Syncope prior to 2.1.6 enabling attackers to inject arbitrary Java EL expressions
CVE-2020-1959 9.8 - Critical - May 04, 2020

A Server-Side Template Injection was identified in Apache Syncope prior to 2.1.6 enabling attackers to inject arbitrary Java EL expressions, leading to an unauthenticated Remote Code Execution (RCE) vulnerability. Apache Syncope uses Java Bean Validation (JSR 380) custom constraint validators. When building custom constraint violation error messages, they support different types of interpolation, including Java EL expressions. Therefore, if an attacker can inject arbitrary data in the error message template being passed, they will be able to run arbitrary Java code.

Code Injection

An administrator with workflow definition entitlements
CVE-2018-17186 7.2 - High - November 06, 2018

An administrator with workflow definition entitlements can use DTD to perform malicious operations, including but not limited to file read, file write, and code execution.

XXE

A malicious user with enough administration entitlements
CVE-2018-17184 5.4 - Medium - November 06, 2018

A malicious user with enough administration entitlements can inject html-like elements containing JavaScript statements into Connector names, Report names, AnyTypeClass keys and Policy descriptions. When another user with enough administration entitlements edits one of the Entities above via Admin Console, the injected JavaScript code is executed.

XSS

An administrator with report and template entitlements in Apache Syncope 1.2.x before 1.2.11, 2.0.x before 2.0.8, and unsupported releases 1.0.x and 1.1.x
CVE-2018-1321 7.2 - High - March 20, 2018

An administrator with report and template entitlements in Apache Syncope 1.2.x before 1.2.11, 2.0.x before 2.0.8, and unsupported releases 1.0.x and 1.1.x which may be also affected, can use XSL Transformations (XSLT) to perform malicious operations, including but not limited to file read, file write, and code execution.

Improper Input Validation

An administrator with user search entitlements in Apache Syncope 1.2.x before 1.2.11, 2.0.x before 2.0.8, and unsupported releases 1.0.x and 1.1.x
CVE-2018-1322 4.9 - Medium - March 20, 2018

An administrator with user search entitlements in Apache Syncope 1.2.x before 1.2.11, 2.0.x before 2.0.8, and unsupported releases 1.0.x and 1.1.x which may be also affected, can recover sensitive security values using the fiql and orderby parameters.

Information Disclosure