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.

The following products are affected by CVE-2026-3142 vulnerability.

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Here, you will find a curated list of external links that provide in-depth information to CVE-2026-3142.

URL	Resource
https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L132
https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L160
https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L172
https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L180
https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L214
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