CVE-2026-86709: Unknown The Pressengine

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

The Pressengine WordPress plugin through 1.0 does not stop its login handler from issuing a session when authentication fails, allowing unauthenticated attackers to log in as any user, including administrators.

Affected products

• Unknown The Pressengine: up to and including 1.0

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