Oracle Primavera P6 Web Access: Vulnerable 20.x-23.x (Unauth HTTP)
CVE-2025-21528 Published on January 21, 2025

Vulnerability in the Primavera P6 Enterprise Project Portfolio Management product of Oracle Construction and Engineering (component: Web Access). Supported versions that are affected are 20.12.1.0-20.12.21.5, 21.12.1.0-21.12.20.0, 22.12.1.0-22.12.16.0 and 23.12.1.0-23.12.10.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Primavera P6 Enterprise Project Portfolio Management. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Primavera P6 Enterprise Project Portfolio Management accessible data. CVSS 3.1 Base Score 4.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N).

Vendor Advisory NVD

Vulnerability Analysis

CVE-2025-21528 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
LOW
Availability Impact:
NONE

Weakness Type

What is a Session Riding Vulnerability?

The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. When a web server is designed to receive a request from a client without any mechanism for verifying that it was intentionally sent, then it might be possible for an attacker to trick a client into making an unintentional request to the web server which will be treated as an authentic request. This can be done via a URL, image load, XMLHttpRequest, etc. and can result in exposure of data or unintended code execution.

CVE-2025-21528 has been classified to as a Session Riding vulnerability or weakness.


Products Associated with CVE-2025-21528

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Oracle
 
Oracle Primavera P6 Enterprise Project Portfolio Management
 

Affected Versions

Oracle Corporation Primavera P6 Enterprise Project Portfolio Management:

Exploit Probability

EPSS
0.15%
Percentile
35.10%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.