Chamilo
CVE-2025-52469
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V2 - Validation and Business Logic Workflow enforcement
|
| Impact | CVSS 7.1 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: None. Exploitation requires authentication. Exploitable via remote/network. Public exploit/POC available. |
| Exploit ScenarioDerived | A remote attacker (requires authentication) could exploit this vulnerability to compromise the affected system. |
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Alert meAnalysisAIv1 – Mar 12, 2026
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. [CVSS 7.1 HIGH]
RemediationAI
A vendor patch is available — apply it immediately. Fixed in version 1.11.30.. Restrict network access to the affected service where possible.
Affects your stack
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Technical ContextAI · show details
Affects Chamilo Lms. 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
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
3DescriptionGitHub Advisory
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.
Executive ViewAI
Chamilo LMS users prior to version 1.11.30 face a social engineering risk where authenticated attackers can forcibly add any user as a friend without consent by exploiting a logic flaw in the social network module. This undermines user privacy controls and could enable targeted harassment, social manipulation, or account compromise chains within your learning environment.
Apply vendor patch. If immediate patching is not feasible: (1) Implement WAF rules to restrict unauthenticated access to the friend request AJAX endpoint; (2) Disable the social network module entirely if not critical to operations; (3) Implement network segmentation to limit Chamilo access to trusted networks only; (4) Enable detailed logging and alerting on friend request activity for manual review; (5) Communicate to users to audit and remove unexpected friends from their accounts.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)GitHub Advisory
A command injection vulnerability in the wsConvertPpt component of Chamilo v1.11.* up to v1.11.18 allows attackers to ex
Chamilo LMS prior to 1.11.28 has a code injection through SOAP request parameters enabling remote code execution.
Chamilo LMS prior to 1.11.30 has a time-based SQL injection in a different endpoint, providing an additional database ex
Chamilo LMS prior to 1.11.30 has an error-based SQL injection enabling database extraction.
Improper sanitisation in `main/inc/lib/fileUpload.lib.php` in Chamilo LMS <= v1.11.20 on Windows and Apache installation
Path traversal in file upload functionality in `/main/webservices/additional_webservices.php` in Chamilo LMS <= v1.11.20
Command injection in `/main/webservices/additional_webservices.php` in Chamilo LMS <= v1.11.20 allows unauthenticated at
Chamilo LMS v1.11.x was discovered to contain a SQL injection via the doc parameter in main/plagiarism/compilatio/upload
main/inc/ajax/model.ajax.php in Chamilo through 1.11.14 allows SQL Injection via the searchField, filters, or filters2 p
Chamilo LMS 1.11.8 and 2.x allows remote code execution through an lp_upload.php unauthenticated file upload feature. Ra
Chamilo LMS prior to 1.11.30 has a blind SSRF vulnerability enabling internal network reconnaissance from the learning p
Unrestricted file upload in big file upload functionality in `/main/inc/lib/javascript/bigupload/inc/bigUpload.php` in C
Exploit-DB