CVE-2026-86707: Unknown Private Feed Key

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

The Private Feed Key WordPress plugin through 0.1 does not verify that the key used to authenticate a feed request is one it issued, matching any stored user metadata value instead, which allows unauthenticated attackers to log in as any user, including administrators.

Affected products

• Unknown Private Feed Key: up to and including 0.1

Published 2026-09-17. Last modified 2026-09-18.