Stored XSS Vulnerability in Chamilo Learning Management System
CVE-2025-59540

6.4MEDIUM

Key Information:

Vendor

Chamilo

Status
Chamilo-lms
Vendor
CVE Published:
6 March 2026

What is CVE-2025-59540?

Chamilo Learning Management System is susceptible to a stored Cross-Site Scripting (XSS) vulnerability that affects staff accounts. This weakness allows malicious users to execute arbitrary JavaScript code in the browsers of higher-privileged admin users due to improper encoding of feedback input on the exercise history page. Consequently, any malicious script can be saved in the database and executed when the affected page is accessed. It is critical for organizations using Chamilo LMS to update to version 1.11.34 or later to mitigate this risk.

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Affected Version(s)

chamilo-lms < 1.11.34

References

https://github.com/chamilo/chamilo-lms/security/advisorie...
x_refsource_CONFIRM
https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.34
x_refsource_MISC

CVSS V4

Score:
6.4
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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