Stored Cross-Site Scripting in Contextual Related Posts Plugin for WordPress
CVE-2026-85653

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Contextual Related Posts
Vendor
CVE Published:
22 September 2026

What is CVE-2026-85653?

The Contextual Related Posts plugin for WordPress exhibits a Stored Cross-Site Scripting vulnerability through the 'other_attributes' block parameter. This weakness arises from insufficient input sanitization and output escaping methods, allowing authenticated users with author-level access or higher to inject malicious web scripts. These scripts are executed when a user accesses the modified pages, potentially compromising site security and user data.

Affected Version(s)

Contextual Related Posts 0 <= 4.4.1

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/contextual-rel...
https://plugins.trac.wordpress.org/browser/contextual-rel...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Athiwat Tiprasaharn (Jitlada)
Itthidej Aramsri (Boeing777)
.