CVE-2026-31941 Details
Description
Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, Chamilo LMS contains a Server-Side Request Forgery (SSRF) vulnerability in the Social Wall feature. The endpoint read_url_with_open_graph accepts a URL from the user via the social_wall_new_msg_main POST parameter and performs two server-side HTTP requests to that URL without validating whether the target is an internal or external resource. This allows an authenticated attacker to force the server to make arbitrary HTTP requests to internal services, scan internal ports, and access cloud instance metadata. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.
A Server-Side Request Forgery (SSRF) vulnerability has been identified in Chamilo LMS versions prior to 1.11.38 and 2.0.0-RC.3. The vulnerability resides in the Social Wall feature, specifically within the 'read_url_with_open_graph' endpoint. This endpoint accepts a URL via the 'social_wall_new_msg_main' POST parameter and performs two server-side HTTP requests to the provided URL without proper validation of whether the target is an internal or external resource. As a result, an authenticated attacker could manipulate the server into making arbitrary HTTP requests to internal services, scan internal ports, and access cloud instance metadata.
Users can update to Chamilo LMS versions 1.11.38 or 2.0.0-RC.3, where this vulnerability has been patched. Instructions for updating can be found in the Chamilo LMS GitHub repository.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 10, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-918 | Server-Side Request Forgery (SSRF) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| chamilo chamilo lms | < 1.11.38 2.0.0 alpha1 2.0.0 alpha2 2.0.0 alpha3 2.0.0 alpha4 2.0.0 alpha5 2.0.0 beta1 2.0.0 beta2 2.0.0 beta3 2.0.0 rc1 2.0.0 rc2 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 17, 2026 | Initial Analysis | [email protected] |
| Apr 10, 2026 | New CVE Received | [email protected] |