CVE-2025-5537: Fooplugins Foobox

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

The Lightbox & Modal Popup WordPress Plugin – FooBox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via image alternative texts in all versions up to, and including, 2.7.34 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Fooplugins Foobox: before 2.7.35 (fixed in 2.7.35)

Published 2025-07-08. Last modified 2026-06-17.