CVE-2026-45146

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.

• CWE-89

• 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

Published

Nov 3, 2026

Last Modified

Nov 3, 2026

Status

Received

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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