CVE-2026-3584
CriticalExploitedKali Forms <= 2.4.9 - Unauthenticated Remote Code Execution via form_process
Published Mar 20, 2026 · Updated Apr 8, 2026 · Also known as 6cecd06f-c064-49fd-b3fa-505a5a0c2e0b
Key Facts
Patch immediately- CVE-2026-3584 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting kali-forms (wordpress-plugin), Kali Forms — Contact Form & Drag-and-Drop Builder.
- It is exploited in the wild, listed in Industry KEV feed since Mar 20, 2026. No public exploit code is known.
- EPSS estimates a 4.4% probability of exploitation in the next 30 days.
- Fixed versions are available, including kali-forms 2.4.10.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
4.4%
Higher than 91.2% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
None known
Get the full CVE-2026-3584 brief as a PDF
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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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Mar 20, 2026 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| kali-formswordpress-plugin | See advisory | 2.4.10 |
| Kali Forms — Contact Form & Drag-and-Drop Builder | See advisory | n/a |
Patched Releases
kali-forms
2.4.10
Timeline
Publicly disclosed
Mar 20, 2026
Added to Industry KEV feed
Mar 20, 2026
Last updated
Apr 8, 2026
Weakness Type
- CWE-94 Improper Control of Generation of Code ('Code Injection')
References
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/6cecd06f-c064-49fd-b3fa-505a5a0c2e0b?source=api-prod
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/6cecd06f-c064-49fd-b3fa-505a5a0c2e0b?source=api-scan
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- otherhttps://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.9/Inc/Frontend/class-form-processor.php#L697
FAQ
Common Questions.
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.
Affected: kali-forms (wordpress-plugin); Kali Forms — Contact Form & Drag-and-Drop Builder. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Mar 20, 2026.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including kali-forms 2.4.10.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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