CVE-2026-16056: Unknown Contest Gallery

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

The Contest Gallery WordPress plugin before 30.0.7 does not perform any capability or nonce check in one of its handlers, allowing any authenticated user down to Subscriber to read the site's entire stored OpenAI prompt history.

Affected products

• Unknown Contest Gallery: before 30.0.7 (fixed in 30.0.7)

Published 2026-08-04. Last modified 2026-08-26.