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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.

PUBLISHED Reserved 2026-02-24 | Published 2026-04-08 | Updated 2026-04-08 | Assigner Wordfence




MEDIUM: 6.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
unaffected

Any version
affected

Timeline

2026-04-07:Disclosed

Credits

Nabil Irawan finder

References

www.wordfence.com/...-b588-4bdd-9627-0e38c0ee5e8a?source=cve

plugins.trac.wordpress.org/...estMetaTagSiteVerification.php

plugins.trac.wordpress.org/...estMetaTagSiteVerification.php

plugins.trac.wordpress.org/...estMetaTagSiteVerification.php

plugins.trac.wordpress.org/...estMetaTagSiteVerification.php

plugins.trac.wordpress.org/...estMetaTagSiteVerification.php

plugins.trac.wordpress.org/...estMetaTagSiteVerification.php

plugins.trac.wordpress.org/...estMetaTagSiteVerification.php

cve.org (CVE-2026-3142)

nvd.nist.gov (CVE-2026-3142)

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