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.
EPSS: 0.003 (21.1th percentile) — read the EPSS interpretation.
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.
Affected products
- Chamilo Chamilo-lms — versions < 1.11.30
- Chamilo Chamilo_lms
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC, 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.