CVE-2018-25247: Mybb Thankyou/like System

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

MyBB Like Plugin 3.0.0 contains a stored cross-site scripting vulnerability. Authenticated attackers can inject script payloads into post or thread subjects; when other users view a profile that displays the attacker's liked posts, the unsanitized subject is rendered, executing the script in the viewer's browser.

Affected products

• Mybb Thankyou/like System: up to and including 3.0.0

Published 2026-04-04. Last modified 2026-07-21.