Auth bypass in Rank Math Seo

CVE-2026-77784

The Rank Math SEO WordPress plugin before 1.0.277 does not verify that a user is allowed to edit the object being modified before updating its SEO indexing metadata, allowing users with the Author role and above to alter that metadata on content, taxonomy terms and user profiles they do not own, and to remove other users' content from the site's sitemap and search engine index.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (19.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-77784: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

  • Rank Math Seo

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-77784?
CVE-2026-77784 is a low-severity vulnerability in Rank Math Seo, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 2.7/10. Published 2026-09-02.
How severe is CVE-2026-77784?
Low severity. CVSS v3 base score is 2.7 out of 10.