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CVE-2026-8832

HIGH 8.8 CVSS 3.1
Published
May 27, 2026
Last modified
June 17, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-94
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

The WPCode - Insert Headers and Footers + Custom Code Snippets - WordPress Code Manager plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 2.3.5 This is due to the 'wpcode' custom post type being registered without a custom capability_type or capability restrictions in the wpcode_register_post_type() function, allowing WordPress core to fall back to standard post capabilities for all creation paths including XML-RPC. This makes it possible for authenticated attackers, with author-level access and above, to create and publish executable PHP snippet posts via XML-RPC wp.newPost, which are then executed server-side via eval() in the run_eval() function when the snippet is rendered through the [wpcode] shortcode.

Affected WordPress components

  • WPCode – Insert Headers and Footers + Custom Code Snippets – WordPress Code Manager Plugin · insert-headers-and-footers
    Possible match Active
    Up to and including 2.3.5
    View on WordPress.org
  • insert-headers-and-footers Theme · insert-headers-and-footers
    Possible match Homeless
    Up to and including 2.3.5
    View on WordPress.org

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

  • smub WPCode – Insert Headers and Footers + Custom Code Snippets – WordPress Code Manager — Up to and including 2.3.5

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/insert-headers-and-footers/tags/2.3.5/includes/class-wpcode-snippet-execute.php#L374
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/insert-headers-and-footers/tags/2.3.5/includes/class-wpcode-snippet-execute.php#L415
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/insert-headers-and-footers/tags/2.3.5/includes/execute/class-wpcode-snippet-execute-php.php#L25
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/insert-headers-and-footers/tags/2.3.5/includes/post-type.php#L24
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/insert-headers-and-footers/tags/2.3.5/includes/shortcode.php#L26
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3549060/insert-headers-and-footers/trunk/includes/post-type.php
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?old_path=%2Finsert-headers-and-footers/tags/2.3.5&new_path=%2Finsert-headers-and-footers/tags/2.3.6
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/75a2e8b1-d5e0-4f7b-a70a-f0aadf58c778?source=cve
  • nvd.nist.gov Official NVD record