CVE-2018-25249: Mybb My Arcade

Medium severity, CVSS 6.4. EPSS: 0.3% chance of exploitation in the next 30 days.

MyBB My Arcade Plugin 1.3 contains a persistent cross-site scripting vulnerability that allows authenticated users to inject malicious scripts through arcade game score comments. Attackers can add crafted HTML and JavaScript payloads in the comment field that execute when other users view or edit the comment.

Affected products

• Mybb My Arcade: version 1.3 only

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