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CVE-2026-2305

MEDIUM 6.4 CVSS 3.1
Published
April 10, 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 AddFunc Head & Footer Code plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `aFhfc_head_code`, `aFhfc_body_code`, and `aFhfc_footer_code` post meta values in all versions up to, and including, 2.3. This is due to the plugin outputting these meta values without any sanitization or escaping. While the plugin restricts its own metabox and save handler to administrators via `current_user_can('manage_options')`, it does not use `register_meta()` with an `auth_callback` to protect these meta keys. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts via the WordPress Custom Fields interface that execute when an administrator previews or views the post.

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

  • addfunc AddFunc Head & Footer Code — Up to and including 2.3

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/addfunc-head-footer-code/tags/2.3/addfunc-head-footer-code.php#L63
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/addfunc-head-footer-code/tags/2.3/addfunc-head-footer-code.php#L74
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/addfunc-head-footer-code/tags/2.3/addfunc-head-footer-code.php#L85
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/addfunc-head-footer-code/trunk/addfunc-head-footer-code.php#L63
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/addfunc-head-footer-code/trunk/addfunc-head-footer-code.php#L74
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/addfunc-head-footer-code/trunk/addfunc-head-footer-code.php#L85
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?old_path=%2Faddfunc-head-footer-code/tags/2.3&new_path=%2Faddfunc-head-footer-code/tags/2.4
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/2f2d1a67-1d9b-4b73-988e-085eaa7474c6?source=cve
  • nvd.nist.gov Official NVD record