CVE-2026-45146
Chamilo LMS: Blind SQL Injection in model.ajax.php via filters[groupOp] authentificated
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| chamilo-lms chamilo |
< 1.11.40 (affected) >= 2.0.0, < 2.0.1 (affected) |
CNA: GitHub_M |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 7.2 high |
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | CNA: GitHub_M |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-prqp-8x29-cr88CNA: GitHub_M · x_refsource_CONFIRM
- https://github.com/chamilo/chamilo-lms/commit/4472f3089bbbca1b4713bfd7059907676b80d07fCNA: GitHub_M · x_refsource_MISC
- https://github.com/chamilo/chamilo-lms/commit/7cc961d60ac27eaccd6bcc8db201de2c65adfdf3CNA: GitHub_M · x_refsource_MISC
- https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.40CNA: GitHub_M · x_refsource_MISC
- https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.1CNA: GitHub_M · x_refsource_MISC
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