CVE-2025-52469Public exploitNetwork attack vector

Authenticated friend addition via unchecked AJAX workflow

Published Mar 2, 2026 · Updated Mar 2, 2026

Workflow bypass in Chamilo LMS before 1.11.30 allows remote authenticated users to add arbitrary users as friends through an AJAX request. The add_friend branch in main/inc/ajax/social.ajax.php created reciprocal relationships without checking for a pending invitation or valid target. A valid session is required; successful requests expose friends-only content and forge entries in both users' friend lists.

CVSS severity7.1
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Workflow bypass in Chamilo LMS before 1.11.30 allows remote authenticated users to add arbitrary users as friends through an AJAX request. The add_friend branch in main/inc/ajax/social.ajax.php created reciprocal relationships without checking for a pending invitation or valid target. A valid session is required; successful requests expose friends-only content and forge entries in both users' friend lists.

The record

CVE
CVE-2025-52469
Published
Mar 2, 2026
Updated
Mar 2, 2026
Vendor
Chamilo
Product
Chamilo LMS
Classifications
CWE-841
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.11.30

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Chamilo · Chamilo LMSversion=< 1.11.30

Published CVSS scores

7.1GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-841Improper Enforcement of Behavioral Workflow

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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