Monitor vulnerabilities like this one.
Sign up free to get alerted when software you use is affected.
9.0
Chamilo Learning Management System: Malicious Code Injection in Course Descriptions
CVE-2025-59543
Summary
If an attacker injects malicious code into a course description, they can take control of administrator accounts. This could happen if a low-privileged user, like a trainer, enters malicious code into a course description, which would then be executed when an administrator views the course information. Update to version 1.11.34 to fix this issue.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| chamilo | chamilo_lms | <= 1.11.34 | – |
Original title
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, a...
Original 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.
nvd CVSS3.1
9.0
Vulnerability type
CWE-79
Cross-site Scripting (XSS)
Published: 6 Mar 2026 · Updated: 12 Mar 2026 · First seen: 6 Mar 2026