Access Control Flaw in Rank Math SEO Plugin for WordPress
CVE-2026-77784

2.7LOW

Key Information:

Vendor

WordPress
Status
Rank Math Seo
Vendor
CVE Published:
2 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-77784?

The Rank Math SEO WordPress plugin prior to version 1.0.277 contains an access control vulnerability that allows users with the Author role and above to edit SEO indexing metadata for content, taxonomy terms, and user profiles that they do not own. This improper validation leads to unauthorized alterations of critical SEO data, including the removal of other users' content from the site's sitemap and search engine index, potentially harming both site visibility and user content integrity.

Affected Version(s)

Rank Math SEO 0 < 1.0.277

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-77784 - Proof of Concept

References

https://wpscan.com/vulnerability/7a6ad8c5-eb7e-4201-8597-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
2.7
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Project Black
WPScan
.