CVE-2026-107323: Unknown Gallery Photoblocks

Medium severity, CVSS 6.8. EPSS: 0.2% chance of exploitation in the next 30 days.

The Gallery PhotoBlocks WordPress plugin before 1.3.6 does not sanitize and escape one of its gallery settings before outputting it into an HTML attribute, allowing users with Contributor-level access and above to store JavaScript that executes in the browser of anyone who views a page containing the gallery, including administrators.

Affected products

• Unknown Gallery Photoblocks: from 1.3.5, before 1.3.6 (fixed in 1.3.6)

Published 2026-10-10. Last modified 2026-10-10.