What is CVE-2026-77786?

CVE-2026-77786 is a medium-severity vulnerability in Rank Math Seo, classified under Incorrect Authorization. CVSS score: 4.9/10. Published 2026-08-29.

How severe is CVE-2026-77786?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Auth bypass in Rank Math Seo

CVE-2026-77786

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.

Vulnerability class: Broken Access Control

EPSS: 0.001 (3.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N.

Affected products

Unknown Rank Math Seo

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-77786?: CVE-2026-77786 is a medium-severity vulnerability in Rank Math Seo, classified under Incorrect Authorization. CVSS score: 4.9/10. Published 2026-08-29.
How severe is CVE-2026-77786?: Medium severity. CVSS v3 base score is 4.9 out of 10.