Kali Forms signatures allow unauthenticated stored XSS

Kali Forms 2.4.18 and earlier stores digitalSignature field content without sufficient sanitization and later renders it without safe escaping. Because the form nonce is available on the public form, an unauthenticated attacker can submit persistent script that executes when the stored submission is viewed.

CVE / CNA score 7.2 CVSS 3.1 · security@wordfence.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: Kali Forms — Contact Form & Drag-and-Drop Builder
Plugin slug: kali-forms
Affected: <= 2.4.18
Safe version: > 2.4.18
Published: Jul 17, 2026
Weakness: CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Jul 17, 2026 and is one of 12 known issues for this plugin.

What to do

Patch or disable the affected component.

Update Kali Forms to a release newer than 2.4.18 and inspect stored submissions for unexpected markup.

Source record

Technical description

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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

References

Patch or disable the affected component.

Technical description

Primary and upstream sources