What the vulnerability does
01Description
The Kali Forms — Contact Form & Drag-and-Drop Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'digitalSignature' Field Value in all versions up to, and including, 2.4.18 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The required form-submission nonce is publicly available on any page containing the form shortcode, making this exploitable by fully unauthenticated attackers without any precondition beyond the form being published.
Explanation of Vulnerability in Simple Terms
02Summary
Kali Forms versions 2.4.18 and earlier contain a cross-site scripting (XSS) vulnerability that allows unauthenticated attackers to inject malicious scripts into the site without user interaction. The vulnerability affects the form builder component and can impact all site visitors. Administrators should update to a version newer than 2.4.18 as soon as available.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in visitors' browsers and steals data or performs actions on their behalf.
Potential impact on your site
04Site Impact
Visitors to your site could have their sessions hijacked, credentials stolen, or be redirected to malicious sites.
Conditions required to exploit
05Prerequisites
None. The attacker needs only network access; no authentication or user interaction required.
Key dates
06Disclosure timeline
July 17, 2026
CVE published
