CVE-2026-3142: Uniquecodergmailcom Pinterest Site Verification Plugin Using Meta Tag

Medium severity, CVSS 6.4. EPSS: 0.4% chance of exploitation in the next 30 days.

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 products

• Uniquecodergmailcom Pinterest Site Verification Plugin Using Meta Tag: up to and including 1.8

Published 2026-04-08. Last modified 2026-07-25.