CVE-2026-81153: Unknown Robo Gallery

Medium severity, CVSS 6.8. EPSS: 0.3% chance of exploitation in the next 30 days.

The Robo Gallery WordPress plugin before 5.2.6 does not sanitise and escape some of its image settings before outputting them in a gallery page, allowing users with the Author role and above to perform Stored Cross-Site Scripting attacks that execute in the browser of any visitor viewing the gallery, including administrators, even where the unfiltered_html capability is disallowed such as on multisite.

Affected products

• Unknown Robo Gallery: before 5.2.6 (fixed in 5.2.6)

Published 2026-10-11. Last modified 2026-10-13.