CVE-2026-77786: Unknown Rank Math Seo

Medium severity, CVSS 4.9. EPSS: 0.3% chance of exploitation in the next 30 days.

The Rank Math SEO WordPress plugin before 1.0.277 does not check that the user requesting an automated SEO fix holds the capability WordPress itself requires for the settings being changed, allowing users with the Editor role to modify site-wide core WordPress settings that are reserved to administrators.

Affected products

• Unknown Rank Math Seo: from 1.0.271, before 1.0.277 (fixed in 1.0.277)

Published 2026-08-29. Last modified 2026-08-31.