CVE-2024-8519: Ultimatemember Ultimate Member

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'um_loggedin' shortcode in all versions up to, and including, 2.8.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Ultimatemember Ultimate Member: before 2.8.7 (fixed in 2.8.7)

Published 2024-10-04. Last modified 2026-06-17.