Security advisory for Chamilo LMS
CVE-2026-45146
Full advisory details, affected packages, severity context, and original source.
Affected technology
Advisory overview
Chamilo LMS is an open-source learning management system. Prior to 1.11.40 and 2.0.1, an authenticated administrator can call the get_sessions action in /main/inc/ajax/model.ajax.php with _search=true and a crafted JSON filters parameter whose groupOp field contains SQL syntax. Because groupOp is not restricted to the expected AND or OR operators before it is incorporated into query logic, attacker-controlled input is interpreted by the database and enables blind or time-based SQL injection. Successful exploitation can disclose sensitive user, course, session, configuration, password-reset, and administrative data, modify or delete records subject to database privileges, and cause denial of service through expensive delayed queries. This issue is fixed in versions 1.11.40 and 2.0.1.
Related references
- https://github.com/chamilo/chamilo-lms/commit/4472f3089bbbca1b4713bfd7059907676b80d07f
- https://github.com/chamilo/chamilo-lms/commit/7cc961d60ac27eaccd6bcc8db201de2c65adfdf3
- https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.40
- https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.1
- https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-prqp-8x29-cr88