CVE-2026-14812: Unknown Premium Seo

Critical severity, CVSS 10.0. EPSS: 0.8% chance of exploitation in the next 30 days.

The Premium SEO WordPress plugin is malicious: it ships an unauthenticated backdoor that creates a hidden administrator account and, in some builds, also enables remote code execution, server-side request forgery and arbitrary front-end script/content injection, giving an unauthenticated attacker full control of the affected site.

Affected products

• Unknown Premium Seo: any version

Published 2026-08-06. Last modified 2026-08-26.