Vulnerability · Published Apr 10, 2026 · Assigned by GitHub_M

CVE-2026-31941Server-Side Request Forgery (SSRF) in Chamilo LMS

High 7.7

In plain English

A high-severity server-side request forgery in chamilo-lms from chamilo. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)7.7High

Exploit odds (30 days)0.2%top 86.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
chamilo	chamilo-lms	< 1.11.38>= 2.0.0-alpha.1, < 2.0.0-RC.3

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

References

https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-q74c-mx8x-489h x_refsource_CONFIRM
https://github.com/chamilo/chamilo-lms/commit/e3790c5f0ff3b4dc547c2099fadf5c438c1bb265 x_refsource_MISC
https://github.com/chamilo/chamilo-lms/commit/ea6b7b7e90580c9b01dc4bcafe4ad737061e0ead x_refsource_MISC