CVE-2018-12580: Dragonbyte-Tech Vbsecurity

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

library/DBTech/Security/Action/Sessions.php in DragonByte vBSecurity 3.x through 3.3.0 for vBulletin 3 and vBulletin 4 allows self-XSS via $session['user_agent'] in the "Login Sessions" feature.

Affected products

• Dragonbyte-Tech Vbsecurity: from 3.0.0, up to and including 3.3.0

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