CVE-2017-5480: b2evolution

High severity, CVSS 8.1. EPSS: 2.5% chance of exploitation in the next 30 days.

Directory traversal vulnerability in inc/files/files.ctrl.php in b2evolution through 6.8.3 allows remote authenticated users to read or delete arbitrary files by leveraging back-office access to provide a .. (dot dot) in the fm_selected array parameter.

Affected products

• b2evolution b2evolution: up to and including 6.8.3

Published 2017-01-15. Last modified 2026-06-17.