CVE-2026-30876: Chamilo LMS: User enumeration vulnerability via response

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-16 · updated 2026-06-17
Weakness: CWE-204

Description

Chamilo LMS is a learning management system. Prior to version 1.11.36, Chamilo is vulnerable to user enumeration with valid/invalid username. This issue has been patched in version 1.11.36.

Affected products

chamilo-lms: before 1.11.36 — fixed in 1.11.36

How to fix

Upgrade to a fixed version: chamilo-lms 1.11.36. Check the vendor advisory for mitigations.

References

https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.36
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-cqr8-vvqp-4mp4

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