Vulnerability Description
The Pinterest Site Verification plugin using Meta Tag plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'post_var' parameter in versions up to, and including, 1.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-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/pinterest-site-verification/tags/1.8/
- https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/
- https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/
- https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/
- https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/
- https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/
- https://plugins.trac.wordpress.org/browser/pinterest-site-verification/trunk/Pin
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7ccb7534-b588-4bdd-962
FAQ
What is CVE-2026-3142?
CVE-2026-3142 is a vulnerability with a CVSS score of 6.4 (MEDIUM). The Pinterest Site Verification plugin using Meta Tag plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'post_var' parameter in versions up to, and including, 1.8 due to insuff...
How severe is CVE-2026-3142?
CVE-2026-3142 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-2026-3142?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.