CVE-2018-25250: Mybb Last User Threads

Medium severity, CVSS 6.1. EPSS: 0.2% chance of exploitation in the next 30 days.

MyBB Last User's Threads in Profile Plugin 1.2 contains a persistent cross-site scripting vulnerability that allows attackers to inject malicious scripts by crafting thread subjects with script tags. Attackers can create threads with script payloads in the subject field that execute when users visit the attacker's profile page.

Affected products

• Mybb Last User Threads: up to and including 1.2

Published 2026-04-04. Last modified 2026-07-24.