Vulnerability in Chamilo Chamilo-Lms
CVE-2025-52469
Chamilo is a learning management system. Prior to version 1.11.30, a logic vulnerability in the friend request workflow of Chamilo’s social network module allows an authenticated user to forcibly add any user as a friend by directly calling the AJAX endpoint. The attacker can bypass the normal flow of sending and accepting friend requests, and even add non-existent users. This breaks access control and social interaction logic, with potential privacy implications. This issue has been patched in version 1.11.30.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (20.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Chamilo Chamilo-Lms — versions < 1.11.30
- Chamilo Lms
Weakness classification (CWE)
References
- github.com/chamilo/chamilo-lms/security/advisories/GHSA-m5xj-5xf3-rqch (Exploit, Vendor Advisory)
- github.com/chamilo/chamilo-lms/commit/39e0fa88a2ba5dd197e0d8ce7335730b666992a6 (Patch)
- github.com/chamilo/chamilo-lms/releases/tag/v1.11.30 (Product, Release Notes)
Frequently asked questions
- What is CVE-2025-52469?
- CVE-2025-52469 is a high-severity vulnerability in Chamilo Chamilo-Lms, classified under Improper Enforcement of Behavioral Workflow. CVSS score: 7.1/10. Published 2026-03-02.
- How severe is CVE-2025-52469?
- High severity. CVSS v3 base score is 7.1 out of 10.