Zabbix

Zabbix: Unprivileged User Can Retrieve Active Problem List
CVE-2025-49641 - October 03, 2025

A regular Zabbix user with no permission to the Monitoring -> Problems view is still able to call the problem.view.refresh action and therefore still retrieve a list of active problems.

AuthZ

Zabbix Agent/2 LPE via Writable OpenSSL Config on Windows
CVE-2025-27237 - October 03, 2025

In Zabbix Agent and Agent 2 on Windows, the OpenSSL configuration file is loaded from a path writable by low-privileged users, allowing malicious modification and potential local privilege escalation by injecting a DLL.

DLL preloading

Zabbix API DataMining via Unauthorized Select Fields
CVE-2025-27236 - October 03, 2025

A regular Zabbix user can search other users in their user group via Zabbix API by select fields the user does not have access to view. This allows data-mining some field values the user does not have access to.

AuthZ

Okta LDAP Bind PWD Leak via Host Change
CVE-2025-27231 - October 03, 2025

The LDAP 'Bind password' value cannot be read after saving, but a Super Admin account can leak it by changing LDAP 'Host' to a rogue LDAP server. To mitigate this, the 'Bind password' value is now reset on 'Host' change.

Insufficiently Protected Credentials

SQLi in Zabbix Host Autoremoval via Visible Name Field
CVE-2025-27240 - September 12, 2025

A Zabbix adminitrator can inject arbitrary SQL during the autoremoval of hosts by inserting malicious SQL in the 'Visible name' field.

SQL Injection

Zabbix API hostprototype.get Host Proto Leak to Unprivileged Users
CVE-2025-27238 - September 12, 2025

Due to a bug in Zabbix API, the hostprototype.get method lists all host prototypes to users that do not have any user groups assigned to them.

Authorization

Zabbix Agent 2 smtctl Plugin: Param Injection Leaks NTLMv2
CVE-2025-27233 - September 12, 2025

Zabbix Agent 2 smartctl plugin does not properly sanitize smart.disk.get parameters, allowing an attacker to inject unexpected arguments into the smartctl command. This can be used to leak the NTLMv2 hash from a Windows system.

Command Injection

Zabbix Agent 2 smartctl RCE via unsanitized smart.disk.get (<=5.0)
CVE-2025-27234 - September 12, 2025

Zabbix Agent 2 smartctl plugin does not properly sanitize smart.disk.get parameters, allowing an attacker to inject unexpected arguments into the smartctl command. In Zabbix 5.0 this allows for remote code execution.

Shell injection

Uncontrolled Resource Exhaustion in Zabbix Server Enables DoS
CVE-2024-45700 - April 02, 2025

Zabbix server is vulnerable to a DoS vulnerability due to uncontrolled resource exhaustion. An attacker can send specially crafted requests to the server, which will cause the server to allocate an excessive amount of memory and perform CPU-intensive decompression operations, ultimately leading to a service crash.

Allocation of Resources Without Limits or Throttling

Login Timing Attack: Different Response for Non-Existing User
CVE-2024-36469 - April 02, 2025

Execution time for an unsuccessful login differs when using a non-existing username compared to using an existing one.

Observable Timing Discrepancy

Zabbix API user.get Exposes Sensitive User Data
CVE-2024-42325 - April 02, 2025

Zabbix API user.get returns all users that share common group with the calling user. This includes media and other information, such as login attempts, etc.

Privacy violation

Zabbix XSS in /zabbix.php?action=export.valuemaps via backurl
CVE-2024-45699 - April 02, 2025

The endpoint /zabbix.php?action=export.valuemaps suffers from a Cross-Site Scripting vulnerability via the backurl parameter. This is caused by the reflection of user-supplied data without appropriate HTML escaping or output encoding. As a result, a JavaScript payload may be injected into the above endpoint causing it to be executed within the context of the victim's browser.

XSS

Zabbix API SQLi via groupBy in CApiService.php
CVE-2024-36465 - April 02, 2025

A low privilege (regular) Zabbix user with API access can use SQL injection vulnerability in include/classes/api/CApiService.php to execute arbitrary SQL commands via the groupBy parameter.

Plaintext Password Export via YAML in Media Types
CVE-2024-36464 2.7 - Low - November 27, 2024

When exporting media types, the password is exported in the YAML in plain text. This appears to be a best practices type issue and may have no actual impact. The user would need to have permissions to access the media types and therefore would be expected to have access to these passwords.

Unprotected Storage of Credentials

Zabbix: Use-After-Free Vulnerability in Duktape JavaScript Engine Integration
CVE-2024-42331 3.3 - Low - November 27, 2024

In the src/libs/zbxembed/browser.c file, the es_browser_ctor method retrieves a heap pointer from the Duktape JavaScript engine. This heap pointer is subsequently utilized by the browser_push_error method in the src/libs/zbxembed/browser_error.c file. A use-after-free bug can occur at this stage if the wd->browser heap pointer is freed by garbage collection.

Dangling pointer

Zabbix Server Out-of-Bounds Read Memory Leak Vulnerability in Email Module
CVE-2024-42333 2.7 - Low - November 27, 2024

The researcher is showing that it is possible to leak a small amount of Zabbix Server memory using an out of bounds read in src/libs/zbxmedia/email.c

Buffer Over-read

Zabbix PHP API SQLi in CUser::addRelatedObjects via get()
CVE-2024-42327 - November 27, 2024

A non-admin user account on the Zabbix frontend with the default User role, or with any other role that gives API access can exploit this vulnerability. An SQLi exists in the CUser class in the addRelatedObjects function, this function is being called from the CUser.get function which is available for every user who has API access.

Zabbix SNMP Trap Log Parsing Vulnerability
CVE-2024-42332 3.7 - Low - November 27, 2024

The researcher is showing that due to the way the SNMP trap log is parsed, an attacker can craft an SNMP trap with additional lines of information and have forged data show in the Zabbix UI. This attack requires SNMP auth to be off and/or the attacker to know the community/auth details. The attack requires an SNMP item to be configured as text on the target host.

Zabbix API Privilege Escalation Vulnerability in User Management
CVE-2024-36467 - November 27, 2024

An authenticated user with API access (e.g.: user with default User role), more specifically a user with access to the user.update API endpoint is enough to be able to add themselves to any group (e.g.: Zabbix Administrators), except to groups that are disabled or having restricted GUI access.

Remote Code Execution via Script Params in Monitoring Hosts (Ping script)
CVE-2024-22116 9.9 - Critical - August 12, 2024

An administrator with restricted permissions can exploit the script execution functionality within the Monitoring Hosts section. The lack of default escaping for script parameters enabled this user ability to execute arbitrary code via the Ping script, thereby compromising infrastructure.

Code Injection

ServiceNow: Unprivileged Host Stats Disclosure via SysInfo Widget
CVE-2024-22114 4.3 - Medium - August 12, 2024

User with no permission to any of the Hosts can access and view host count & other statistics through System Information Widget in Global View Dashboard.

Improper Preservation of Permissions

Uncontrolled Resource Consumption (DoS) CVE-2024-36462
CVE-2024-36462 7.5 - High - August 12, 2024

Uncontrolled resource consumption refers to a software vulnerability where a attacker or system uses excessive resources, such as CPU, memory, or network bandwidth, without proper limitations or controls. This can cause a denial-of-service (DoS) attack or degrade the performance of the affected system.

Allocation of Resources Without Limits or Throttling

Zabbix JS Engine Pointer Modification Vulnerability
CVE-2024-36461 9.1 - Critical - August 12, 2024

Within Zabbix, users have the ability to directly modify memory pointers in the JavaScript engine.

Untrusted Pointer Dereference

Frontend Audit Log Exposure of Plaintext Passwords in Unknown Application
CVE-2024-36460 8.1 - High - August 12, 2024

The front-end audit log allows viewing of unprotected plaintext passwords, where the passwords are displayed in plain text.

Unprotected Storage of Credentials

Zabbix Server SMS Media Misconfig Lets Log File Corrupt & Leak via AT Commands
CVE-2024-22123 2.7 - Low - August 12, 2024

Setting SMS media allows to set GSM modem file. Later this file is used as Linux device. But due everything is a file for Linux, it is possible to set another file, e.g. log file and zabbix_server will try to communicate with it as modem. As a result, log file will be broken with AT commands and small part for log file content will be leaked to UI.

Code Injection

Zabbix Agent: Non-Admin Feature Tampering
CVE-2024-22121 6.1 - Medium - August 12, 2024

A non-admin user can change or remove important features within the Zabbix Agent application, thus impacting the integrity and availability of the application.

Improper Preservation of Permissions

Zabbix Server AT Command Injection via Unvalidated SMS Number
CVE-2024-22122 3 - Low - August 12, 2024

Zabbix allows to configure SMS notifications. AT command injection occurs on "Zabbix Server" because there is no validation of "Number" field on Web nor on Zabbix server side. Attacker can run test of SMS providing specially crafted phone number and execute additional AT commands on modem.

Command Injection

Zabbix Exec + Blind SQLi via clientip Injection
CVE-2024-22120 - May 17, 2024

Zabbix server can perform command execution for configured scripts. After command is executed, audit entry is added to "Audit Log". Due to "clientip" field is not sanitized, it is possible to injection SQL into "clientip" and exploit time based blind SQL injection.

Unvalidated Name Field on Graph Page Leads to Injection in Items Section
CVE-2024-22119 5.5 - Medium - February 09, 2024

The cause of vulnerability is improper validation of form input field Name on Graph page in Items section.

Improper Input Validation

Microsoft DNS RDLENGTH Buffer Overflow
CVE-2023-32726 3.9 - Low - December 18, 2023

The vulnerability is caused by improper check for check if RDLENGTH does not overflow the buffer in response from DNS server.

Improper Check for Unusual or Exceptional Conditions

Zabbix RCE via icmpping() in Config Items
CVE-2023-32727 6.8 - Medium - December 18, 2023

An attacker who has the privilege to configure Zabbix items can use function icmpping() with additional malicious command inside it to execute arbitrary code on the current Zabbix server.

Improper Input Validation

Request to LDAP is sent before user permissions are checked.
CVE-2023-32723 9.1 - Critical - October 12, 2023

Request to LDAP is sent before user permissions are checked.

Incorrect Permission Assignment for Critical Resource

Memory pointer is in a property of the Ducktape object
CVE-2023-32724 9.1 - Critical - October 12, 2023

Memory pointer is in a property of the Ducktape object. This leads to multiple vulnerabilities related to direct memory access and manipulation.

Incorrect Permission Assignment for Critical Resource

A stored XSS has been found in the Zabbix web application in the Maps element if a URL field is set with spaces before URL.
CVE-2023-32721 7.6 - High - October 12, 2023

A stored XSS has been found in the Zabbix web application in the Maps element if a URL field is set with spaces before URL.

Improper Input Validation

The zabbix/src/libs/zbxjson module is vulnerable to a buffer overflow when parsing JSON files
CVE-2023-32722 9.6 - Critical - October 12, 2023

The zabbix/src/libs/zbxjson module is vulnerable to a buffer overflow when parsing JSON files via zbx_json_open.

Classic Buffer Overflow

Reflected XSS attacks, occur when a malicious script is reflected off a web application to the victim's browser
CVE-2023-29457 6.3 - Medium - July 13, 2023

Reflected XSS attacks, occur when a malicious script is reflected off a web application to the victim's browser. The script can be activated through Action form fields, which can be sent as request to a website with a vulnerability that enables execution of malicious scripts.

Improper Input Validation

Specially crafted string
CVE-2023-29451 7.5 - High - July 13, 2023

Specially crafted string can cause a buffer overrun in the JSON parser library leading to a crash of the Zabbix Server or a Zabbix Proxy.

Memory Corruption

Currently, geomap configuration (Administration -> General -> Geographical maps)
CVE-2023-29452 5.4 - Medium - July 13, 2023

Currently, geomap configuration (Administration -> General -> Geographical maps) allows using HTML in the field Attribution text when selected Other Tile provider.

XSS

Duktape is an 3rd-party embeddable JavaScript engine, with a focus on portability and compact footprint
CVE-2023-29458 5.9 - Medium - July 13, 2023

Duktape is an 3rd-party embeddable JavaScript engine, with a focus on portability and compact footprint. When adding too many values in valstack JavaScript will crash. This issue occurs due to bug in Duktape 2.6 which is an 3rd-party solution that we use.

out-of-bounds array index

URL validation scheme receives input from a user and then parses it to identify its various components
CVE-2023-29456 5.7 - Medium - July 13, 2023

URL validation scheme receives input from a user and then parses it to identify its various components. The validation scheme can ensure that all URL components comply with internet standards.

Improper Input Validation

Reflected XSS attacks
CVE-2023-29455 5.4 - Medium - July 13, 2023

Reflected XSS attacks, also known as non-persistent attacks, occur when a malicious script is reflected off a web application to the victim's browser. The script is activated through a link, which sends a request to a website with a vulnerability that enables execution of malicious scripts.

Improper Input Validation

Stored or persistent cross-site scripting (XSS) is a type of XSS where the attacker first sends the payload to the web application
CVE-2023-29454 5.4 - Medium - July 13, 2023

Stored or persistent cross-site scripting (XSS) is a type of XSS where the attacker first sends the payload to the web application, then the application saves the payload (e.g., in a database or server-side text files), and finally, the application unintentionally executes the payload for every victim visiting its web pages.

Improper Input Validation

JavaScript preprocessing, webhooks and global scripts can cause uncontrolled CPU, memory, and disk I/O utilization
CVE-2023-29449 5.9 - Medium - July 13, 2023

JavaScript preprocessing, webhooks and global scripts can cause uncontrolled CPU, memory, and disk I/O utilization. Preprocessing/webhook/global script configuration and testing are only available to Administrative roles (Admin and Superadmin). Administrative privileges should be typically granted to users who need to perform tasks that require more control over the system. The security risk is limited because not all users have this level of access.

Resource Exhaustion

JavaScript pre-processing
CVE-2023-29450 8.5 - High - July 13, 2023

JavaScript pre-processing can be used by the attacker to gain access to the file system (read-only access on behalf of user "zabbix") on the Zabbix Server or Zabbix Proxy, potentially leading to unauthorized access to sensitive data.

Information Disclosure

A Firewall Rule which
CVE-2022-43516 9.8 - Critical - December 05, 2022

A Firewall Rule which allows all incoming TCP connections to all programs from any source and to all ports is created in Windows Firewall after Zabbix agent installation (MSI)

An unauthenticated user
CVE-2022-40626 6.1 - Medium - September 14, 2022

An unauthenticated user can create a link with reflected Javascript code inside the backurl parameter and send it to other authenticated users in order to create a fake account with predefined login, password and role in Zabbix Frontend.

XSS

An authenticated user can create a link with reflected Javascript code inside it for the graphs page and send it to other users
CVE-2022-35230 3.7 - Low - July 06, 2022

An authenticated user can create a link with reflected Javascript code inside it for the graphs page and send it to other users. The payload can be executed only with a known CSRF token value of the victim, which is changed periodically and is difficult to predict.

XSS

An authenticated user can create a link with reflected Javascript code inside it for the discovery page and send it to other users
CVE-2022-35229 3.7 - Low - July 06, 2022

An authenticated user can create a link with reflected Javascript code inside it for the discovery page and send it to other users. The payload can be executed only with a known CSRF token value of the victim, which is changed periodically and is difficult to predict.

XSS

Zabbix 4.0 LTS, 4.2, 4.4, and 5.0 LTS is vulnerable to Remote Code Execution (RCE)
CVE-2021-46088 7.2 - High - January 27, 2022

Zabbix 4.0 LTS, 4.2, 4.4, and 5.0 LTS is vulnerable to Remote Code Execution (RCE). Any user with the "Zabbix Admin" role is able to run custom shell script on the application server in the context of the application user.

In the case of instances where the SAML SSO authentication is enabled (non-default), session data can be modified by a malicious actor
CVE-2022-23131 9.1 - Critical - January 13, 2022

In the case of instances where the SAML SSO authentication is enabled (non-default), session data can be modified by a malicious actor, because a user login stored in the session was not verified. Malicious unauthenticated actor may exploit this issue to escalate privileges and gain admin access to Zabbix Frontend. To perform the attack, SAML authentication is required to be enabled and the actor has to know the username of Zabbix user (or use the guest account, which is disabled by default).

Authentication Bypass by Spoofing