CVE-2018-18380: Bigtreecms Bigtree CMS

Medium severity, CVSS 5.4. EPSS: 1.1% chance of exploitation in the next 30 days.

A Session Fixation issue was discovered in Bigtree before 4.2.24. admin.php accepts a user-provided PHP session ID instead of regenerating a new one after a user has logged in to the application. The Session Fixation could allow an attacker to hijack an admin session.

Affected products

• Bigtreecms Bigtree CMS: before 4.2.24 (fixed in 4.2.24)

Published 2018-10-19. Last modified 2026-06-17.