Rank Math SEO Plugin Schema Exposure in WordPress
CVE-2026-77783

3.7LOW

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-77783?

The Rank Math SEO plugin for WordPress prior to version 1.0.277 fails to enforce visibility checks for posts when rendering schema. This oversight allows unauthorized users to access and disclose schema information for draft, pending, private, scheduled, and password-protected posts. As a result, sensitive content may be inadvertently revealed to unauthenticated visitors, potentially leading to unintended exposure of confidential data.

Affected Version(s)

Rank Math SEO 1.0.48 < 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-2026-77783 - Proof of Concept

References

https://wpscan.com/vulnerability/c10db1c1-3af9-45ed-af83-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
3.7
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Project Black
WPScan
.