CVE-2026-3142

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.

Score

CVSS 3.1 6.4 Medium

Status

Deferred - security@wordfence.com

Published

2026-04-08

Last modified

2026-04-08

Weaknesses

CWE-79

Affected products

• Pinterest Site Verification Plugin Using Meta Tag (Uniquecodergmailcom)

References

• https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L1…
• https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L1…
• https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L1…
• https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L1…
• https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L2…
• https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L92
• https://plugins.trac.wordpress.org/browser/pinterest-site-verification/trunk/PinterestMetaTagSiteVerification.php#L160
• https://www.wordfence.com/threat-intel/vulnerabilities/id/7ccb7534-b588-4bdd-9627-0e38c0ee5e8a?source=cve