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CVE-2026-3142

MEDIUM 6.4 CVSS 3.1
Published
April 8, 2026
Last modified
July 25, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • uniquecodergmailcom Pinterest Site Verification plugin using Meta Tag — Up to and including 1.8

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L132
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L160
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L172
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L180
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L214
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/pinterest-site-verification/tags/1.8/PinterestMetaTagSiteVerification.php#L92
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/pinterest-site-verification/trunk/PinterestMetaTagSiteVerification.php#L160
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/7ccb7534-b588-4bdd-9627-0e38c0ee5e8a?source=cve
  • nvd.nist.gov Official NVD record