CVE-2026-45146
Dashboard / Vulnerabilities / CVE-2026-45146
Summary: Chamilo LMS: Blind SQL Injection in model.ajax.php via filters[groupOp] authentificated
Details: 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.
References: 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/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45146.json, https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-prqp-8x29-cr88, https://nvd.nist.gov/vuln/detail/CVE-2026-45146, https://github.com/chamilo/chamilo-lms/commit/4472f3089bbbca1b4713bfd7059907676b80d07f, https://github.com/chamilo/chamilo-lms/commit/7cc961d60ac27eaccd6bcc8db201de2c65adfdf3
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