CVE-2025-13746: Ultimatemember Forumwp – Forum & Discussion Board

Medium severity, CVSS 6.4. EPSS: 0.2% chance of exploitation in the next 30 days.

The ForumWP – Forum & Discussion Board plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the User's Display Name in all versions up to, and including, 2.1.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Ultimatemember Forumwp – Forum & Discussion Board: up to and including 2.1.6

Published 2026-01-06. Last modified 2026-06-17.