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CVE-2026-0916

MEDIUM 6.4 CVSS 3.1
Published
January 16, 2026
Last modified
June 17, 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 Related Posts by Taxonomy plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'related_posts_by_tax' shortcode in all versions up to, and including, 2.7.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-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

  • keesiemeijer Related Posts by Taxonomy — Up to and including 2.7.6

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/related-posts-by-taxonomy/tags/2.7.6/includes/functions.php#L259
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/related-posts-by-taxonomy/tags/2.7.7/includes/functions.php#L259
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/0582fe7d-884c-4019-837a-861d36ccc842?source=cve
  • nvd.nist.gov Official NVD record