CVE-2025-59543 - CVE House

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Status published Critical CVE-2025-59543

Chamilo: Account Takeover via Stored XSS in Course Description

9.1 CVSS

Vulnerability Description

Chamilo is a learning management system. Prior to version 1.11.34, there is a stored cross-site scripting (XSS) vulnerability. By injecting malicious JavaScript into the course description field, an attacker with a low-privileged account (e.g., trainer) can execute arbitrary JavaScript code in the context of any other user viewing the course information page, including administrators. This allows an attacker to exfiltrate sensitive session cookies or tokens, resulting in account takeover (ATO) of higher-privileged users. 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 LMS has validation-less redirect on login page

Chamilo: Unauthorized access to update category of any user

Chamilo: Account Takeover via Stored XSS in Course Learning Paths

Chamilo: CSRF Vulnerability in Project Deletion

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

Affected Vendor

chamilo

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Affected Software

chamilo-lms

Vulnerable Versions:

< 1.11.34

Timeline

Official Publish: March 6th, 2026

Last Modified: March 9th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1189 Drive-by Compromise

T1059.007 JavaScript

T1539 Steal Web Session Cookie

T1213 Data from Information Repositories

T1567 Exfiltration Over Web Service

T1491.001 Defacement