CVE-2025-59540 - CVE House

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Status published Medium CVE-2025-59540

Chamilo: Stored Cross-Site Scripting (XSS) in Chamilo LMS Exercise Feedback

6.4 CVSS

Vulnerability Description

Chamilo is a learning management system. Prior to version 1.11.34, a stored XSS vulnerability exists in Chamilo LMS that allows a staff account to execute arbitrary JavaScript in the browser of higher-privileged admin users. The issue arises because feedback input in the exercise history page is not properly encoded before rendering, allowing malicious scripts to persist in the database and execute on view. This issue has been patched in version 1.11.34.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from chamilo

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Chamilo: Unauthorized access to update category of any user

Chamilo: Account Takeover via Stored XSS in Course Description

Chamilo: Account Takeover via Stored XSS in Course Learning Paths

Chamilo: CSRF Vulnerability in Project Deletion

Affected Vendor

chamilo

View all reports →

Affected Software

chamilo-lms

Vulnerable Versions:

< 1.11.34

Timeline

Official Publish: March 6th, 2026

Last Modified: March 6th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1189 Drive-by Compromise

T1059 Command and Scripting Interpreter

T1552 Unsecured Credentials

Credential Access

T1071 Application Layer Protocol

Command and Control

T1565 Data Manipulation

T1059.007 JavaScript

T1539 Steal Web Session Cookie

T1213 Data from Information Repositories

T1567 Exfiltration Over Web Service

T1491.001 Defacement