CVE-2023-28467: Mybb

Medium severity, CVSS 6.1. EPSS: 0.5% chance of exploitation in the next 30 days.

In MyBB before 1.8.34, there is XSS in the User CP module via the user email field.

Affected products

• Mybb Mybb: before 1.8.34 (fixed in 1.8.34)

Published 2023-05-22. Last modified 2026-06-17.