Unauthorized Access in Rank Math SEO Plugin for WordPress
CVE-2026-77787

2.7LOW

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-77787?

The Rank Math SEO plugin for WordPress prior to version 1.0.277 lacks a proper capability check during bulk metadata updates targeting taxonomy terms. This weak point enables users with the Author role and above to modify SEO metadata of taxonomy terms they should not have the ability to edit. It also permits these users to overwrite the titles of posts belonging to other users, thereby compromising the integrity of the content and metadata management.

Affected Version(s)

Rank Math SEO 1.0.255 < 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-2026-77787 - Proof of Concept

References

https://wpscan.com/vulnerability/849a4859-e10e-49e6-9c38-...
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

Mohammed Abd Alrahman
WPScan
.