Vulnerability Description
The Contextual Related Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'other_attributes' Block Parameter in all versions up to, and including, 4.4.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.2.4/i
- https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.2.4/i
- https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.2.4/i
- https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.2.4/i
- https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.4.0/i
- https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.4.0/i
- https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.4.0/i
- https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.4.0/i
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3703115%40contextual-
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1ee59a73-c449-462d-9ff
FAQ
What is CVE-2026-85653?
CVE-2026-85653 is a vulnerability with a CVSS score of 6.4 (MEDIUM). The Contextual Related Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'other_attributes' Block Parameter in all versions up to, and including, 4.4.1 due to insufficient in...
How severe is CVE-2026-85653?
CVE-2026-85653 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-85653?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.