CVE-2026-0549: Itthinx Groups

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

The Groups plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'groups_group_info' shortcode in all versions up to, and including, 3.10.0 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

• Itthinx Groups: up to and including 3.10.0

Published 2026-02-19. Last modified 2026-06-17.