{"id":"CVE-2026-16144","aliases":["EUVD-2026-51755","GHSA-w9gv-h9qh-63cm"],"status":"published","title":"Kali Forms \u003c= 2.4.20 - Unauthenticated Remote Code Execution via 'thisPermalink' Field Parameter","description":"The Kali Forms — Contact Form \u0026 Drag-and-Drop Builder plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.4.20 via the _save_data function. This is due to insufficient validation of the 'thisPermalink' field value before it overwrites a trusted callable placeholder, allowing attacker-controlled strings to reach call_user_func() in _save_data(). This makes it possible for unauthenticated attackers to execute code on the server. Exploitation requires the target form to define a field with a name matching one of the reserved placeholder keys ('thisPermalink', 'entryCounter', or 'submission_link'), as check_if_placeholders_changed() only processes POST keys present in the form's field_type_map.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.01192,"percentile":0.68205,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-94"],"published":"2026-08-01T07:49:50Z","modified":"2026-08-12T21:00:37Z","products":[{"vendor":"wpchill","product":"kali forms — contact form \u0026 drag-and-drop builder"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/9d692aff-8bb2-45bb-9caf-bc33d3ed5b10?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L1033"},{"url":"https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L172"},{"url":"https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L277"},{"url":"https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L976"},{"url":"https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L90"},{"url":"https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L1033"},{"url":"https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L172"},{"url":"https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L277"},{"url":"https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L976"},{"url":"https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L90"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3623024%40kali-forms\u0026new=3623024%40kali-forms"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-16144"},{"url":"https://github.com/advisories/GHSA-w9gv-h9qh-63cm"}],"sources":{"cve":[{"id":"CVE-2026-16144","title":"Kali Forms \u003c= 2.4.20 - Unauthenticated Remote Code Execution via 'thisPermalink' Field Parameter","description":"The Kali Forms — Contact Form \u0026 Drag-and-Drop Builder plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.4.20 via the _save_data function. This is due to insufficient validation of the 'thisPermalink' field value before it overwrites a trusted callable placeholder, allowing attacker-controlled strings to reach call_user_func() in _save_data(). This makes it possible for unauthenticated attackers to execute code on the server. Exploitation requires the target form to define a field with a name matching one of the reserved placeholder keys ('thisPermalink', 'entryCounter', or 'submission_link'), as check_if_placeholders_changed() only processes POST keys present in the form's field_type_map.","status":"published","published":"2026-08-01T07:49:50.355Z","modified":"2026-08-03T19:22:40.521Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:20:10.870108Z"}],"euvd":[{"id":"EUVD-2026-51755","description":"The Kali Forms — Contact Form \u0026 Drag-and-Drop Builder plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.4.20 via the _save_data function. This is due to insufficient validation of the 'thisPermalink' field value before it overwrites a trusted callable placeholder, allowing attacker-controlled strings to reach call_user_func() in _save_data(). This makes it possible for unauthenticated attackers to execute code on the server. Exploitation requires the target form to define a field with a name matching one of the reserved placeholder keys ('thisPermalink', 'entryCounter', or 'submission_link'), as check_if_placeholders_changed() only processes POST keys present in the form's field_type_map.","status":"published","published":"2026-08-01T07:49:50Z","modified":"2026-08-03T19:22:40Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:02:23.68186Z"}],"ghsa":[{"id":"GHSA-w9gv-h9qh-63cm","title":"The Kali Forms — Contact Form \u0026 Drag-and-Drop Builder plugin for WordPress is vulnerable to...","description":"The Kali Forms — Contact Form \u0026 Drag-and-Drop Builder plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.4.20 via the _save_data function. This is due to insufficient validation of the 'thisPermalink' field value before it overwrites a trusted callable placeholder, allowing attacker-controlled strings to reach call_user_func() in _save_data(). This makes it possible for unauthenticated attackers to execute code on the server. Exploitation requires the target form to define a field with a name matching one of the reserved placeholder keys ('thisPermalink', 'entryCounter', or 'submission_link'), as check_if_placeholders_changed() only processes POST keys present in the form's field_type_map.","status":"published","published":"2026-08-01T09:30:25Z","modified":"2026-08-01T09:30:37Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T15:10:01.548476Z"}],"nvd":[{"id":"CVE-2026-16144","description":"The Kali Forms — Contact Form \u0026 Drag-and-Drop Builder plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.4.20 via the _save_data function. This is due to insufficient validation of the 'thisPermalink' field value before it overwrites a trusted callable placeholder, allowing attacker-controlled strings to reach call_user_func() in _save_data(). This makes it possible for unauthenticated attackers to execute code on the server. Exploitation requires the target form to define a field with a name matching one of the reserved placeholder keys ('thisPermalink', 'entryCounter', or 'submission_link'), as check_if_placeholders_changed() only processes POST keys present in the form's field_type_map.","status":"published","published":"2026-08-01T09:17:00.69Z","modified":"2026-08-12T21:00:37.147Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:12:34.290716Z"}]}}