CVE-2026-77783: Unknown Rank Math Seo

Low severity, CVSS 3.7. EPSS: 0.3% chance of exploitation in the next 30 days.

The Rank Math SEO WordPress plugin before 1.0.277 does not verify that the post whose schema it renders on the front end is publicly viewable, allowing unauthenticated visitors to disclose the schema and associated content of draft, pending, private, scheduled and password-protected posts.

Affected products

• Unknown Rank Math Seo: from 1.0.48, before 1.0.277 (fixed in 1.0.277)

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