CVE-2025-59543CWE-79

Chamilo: Account Takeover via Stored XSS in Course Description

Critical · published March 6, 2026

CVSS v3.1
9.1
EPSS
0%
Percentile
17.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00263 · 17.1th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-03-06T03:32Z
EPSS history
Timeline
  • 06 MAR 03:32Z
    Chamilo: Account Takeover via Stored XSS in Course Description
    cvelistv5