Chamilo LMS: Blind SQL Injection in model.ajax.php via filters[groupOp] authentificated

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-45146
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-03 20:18:13 UTC
Updated2026-11-03 20:18:13 UTC
DescriptionChamilo 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.

Risk And Classification

Primary CVSS: v3.1 7.2 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-89 | CWE-89 CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.2HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.2HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Chamilo Chamilo-lms affected < 1.11.40 Not specified
CNA Chamilo Chamilo-lms affected >= 2.0.0, < 2.0.1 Not specified

References

ReferenceSourceLinkTags
github.com/chamilo/chamilo-lms/releases/tag/v2.0.1 [email protected] github.com
github.com/chamilo/chamilo-lms/releases/tag/v1.11.40 [email protected] github.com
github.com/chamilo/chamilo-lms/commit/4472f3089bbbca1b4713bfd7059907676b... [email protected] github.com
github.com/chamilo/chamilo-lms/security/advisories/GHSA-prqp-8x29-cr88 [email protected] github.com
github.com/chamilo/chamilo-lms/commit/7cc961d60ac27eaccd6bcc8db201de2c65... [email protected] github.com
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