Path traversal in Chamilo LMS - #VU137019
Published: July 7, 2026
Vulnerability identifier: #VU137019
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Chamilo
Affected software:
Chamilo LMS
Chamilo LMS
Detailed vulnerability description
The vulnerability allows a remote user to delete arbitrary files and cause a denial of service.
The vulnerability exists due to improper input validation in the plugin/cleandeletedfiles/src/ajax.php AJAX endpoint when handling path and list parameters. A remote user can send a specially crafted request to delete arbitrary files and cause a denial of service.
The issue is exposed through the cleandeletedfiles plugin and can also be exploited via cross-site request forgery against an administrator session.
Remediation
Install security update from vendor's website.