What the vulnerability does
01Description
The Kali Forms — Contact Form & 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.
Explanation of Vulnerability in Simple Terms
02Summary
Kali Forms allows attackers to inject and execute arbitrary PHP code on affected WordPress sites through a code injection vulnerability. No authentication or user interaction is required to exploit this flaw. All versions up to 2.4.20 are affected. Site administrators should update immediately to a patched version.
What an attacker can do
03Attacker Capabilities
Run arbitrary PHP code on the site without authentication.
Potential impact on your site
04Site Impact
Complete site compromise: attackers can steal data, modify content, create admin accounts, or take the site offline.
Conditions required to exploit
05Prerequisites
Network access to the site; no authentication or user interaction required.
Key dates
06Disclosure timeline
August 1, 2026
CVE published
August 3, 2026
Record updated
