CVE-2012-2326: Mybb

Medium severity, CVSS 4.3. EPSS: 1% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in the Admin Control Panel (ACP) in MyBB (aka MyBulletinBoard) before 1.6.7 allows remote administrators to inject arbitrary web script or HTML via a malformed file name in an orphaned attachment.

Affected products

• Mybb Mybb: up to and including 1.6.6; version 1.00 only; version 1.0 only; version 1.01 only; version 1.1.0 only; version 1.1.1 only; …

Published 2012-08-13. Last modified 2026-06-16.