CVE-2026-77787: Unknown Rank Math Seo

Low severity, CVSS 2.7. EPSS: 0.3% chance of exploitation in the next 30 days.

The Rank Math SEO WordPress plugin before 1.0.277 does not perform a capability check when bulk metadata updates target taxonomy terms, and reuses the supplied object identifier across object types, allowing users with the Author role and above to modify the SEO metadata of terms they cannot edit and to overwrite the titles of posts belonging to other users.

Affected products

• Unknown Rank Math Seo: from 1.0.255, before 1.0.277 (fixed in 1.0.277)

Published 2026-09-02. Last modified 2026-09-03.