CVE-2025-52469 HIGH

CVE-2025-52469: Chamilo: Friend Request Workflow Bypass - Unauthorized Friend Addition and ID Validation Bypass

Vendor Chamilo
Product chamilo-lms
Weakness CWE-841
Published March 2, 2026
Last update March 2, 2026

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 2, 2026 CVE published
March 2, 2026 Record updated