CVE-2018-17341: Bigtreecms Bigtree CMS

High severity, CVSS 8.1. EPSS: 1.9% chance of exploitation in the next 30 days.

BigTree 4.2.23 on Windows, when Advanced or Simple Rewrite routing is enabled, allows remote attackers to bypass authentication via a ..\ substring, as demonstrated by a launch.php?bigtree_htaccess_url=admin/images/..\ URI.

Affected products

Published 2018-09-23. Last modified 2026-06-17.