CVE-2023-4225

Chamilo LMS File Upload Functionality Remote Code Execution

State: Published
Severity: 8.8 High
Published: Nov 28, 2023
Updated: Jun 5, 2025
Reserved: Aug 8, 2023

Description

Unrestricted file upload in `/main/inc/ajax/exercise.ajax.php` in Chamilo LMS <= v1.11.24 allows authenticated attackers with learner role to obtain remote code execution via uploading of PHP files.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	STAR_Labs

Weaknesses

CWE-434 Unrestricted Upload of File with Dangerous Type

Affected Products

Product	Versions
ChamiloChamilo	1.11.24 and earlierAffected

References

https://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-129-2023-09-04-Critical-impact-Moderate-risk-Authenticated-users-may-gain-unauthenticated-RCE-CVE-2023-4223CVE-2023-4224CVE-2023-4225CVE-2023-4226vendor-advisory
https://starlabs.sg/advisories/23/23-4225third-party-advisory
https://github.com/chamilo/chamilo-lms/commit/6f32625a012d5de2dfe8edbccb4ed14a85e310d4patch
https://github.com/chamilo/chamilo-lms/commit/f3d62b65ad60d68096c2674d5695339f04de0b8apatch
https://github.com/chamilo/chamilo-lms/commit/e864127a440c2cab0eb62c113a04e2e904543a1fpatch

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