RCE in Wpchill Kali Forms — Contact Form & Drag-And-Drop Builder

CVE-2026-3584

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.

Vulnerability class: RCE (Remote Code Execution)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.044 (91.0th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-3584: fell from 0.072 to 0.044.

EPSS over last 30 days · oldest: 0.072 · newest: 0.044 · change: -0.028

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2026-3584?
CVE-2026-3584 is a critical-severity vulnerability in Wpchill Kali Forms — Contact Form & Drag-And-Drop Builder, classified under Code Injection. CVSS score: 9.8/10. Published 2026-03-20.
How severe is CVE-2026-3584?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2026-3584 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.