CVE-2026-5203

A vulnerability was found in CMS Made Simple up to 2.2.22. This impacts the function _copyFilesToFolder in the library modules/UserGuide/lib/class.UserGuideImporterExporter.php of the component UserGuide Module XML Import. The manipulation results in path traversal. It is possible to launch the attack remotely. The exploit has been made public and could be used. This issue has been reported early to the project. They confirmed, that "this has already been discovered and fixed for the next release."

Fix

Available

CVSS 2.0

5.8 MEDIUM

CVSS 3.1

4.7 MEDIUM

EPSS

0.3% (24th percentile)

Weakness

CWE-22

NVD status

Deferred

Published

2026-03-31