CVE-2025-59543CRITICAL 9.0EPSS p16.4%

CVE-2025-59543CVE-2025-59543

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.

Scoring

CVSS 3.19.0 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
EPSS0.25% probability of exploitation · percentile 16.4% · 2026-06-18T12:00:27Z
Published2026-03-06
Last modified2026-03-09

Underlying weaknesses· 1

CWE-79

References

  1. https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.34
  2. https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-p32q-6gh3-3gcv

1

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting')cwe-790%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2025-59542
CVE
CVE-2025-55289
CVE
CVE-2025-52482
CVE
CVE-2025-55208
CVE
CVE-2025-59541
CVE
CVE-2025-50189
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.