# CVE-2026-76604: Fabrik PHP form element unauthenticated remote code execution

Source: https://junglewise.ai/threats/cve-2026-76604-fabrik-php-form-element-unauthenticated-remote-code-execution  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-22. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-76604 · Severity: info · Published 2026-08-22

Fabrik is a Joomla application builder that allows users to create custom forms and data applications. A vulnerability in the PHP form element allows unauthenticated attackers to execute arbitrary PHP code, potentially compromising the entire web application and underlying server. This could lead to data theft, website defacement, malware installation, or complete server takeover.

## Quick answers

**Is CVE-2026-76604 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-76604 being exploited in the wild.

**How severe is CVE-2026-76604?** Informational severity, published 22 August 2026.

**Which products and versions are affected?** Fabrikar Fabrik < 4.7.2.

**Is there a fix for CVE-2026-76604?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-76604 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-76604?** Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The PHP form element in Fabrik versions below 4.7.2 fails to properly sanitize or restrict user-supplied input, allowing arbitrary PHP code execution. The vulnerability is accessible without authentication, meaning any unauthenticated attacker with network access to the Fabrik installation can craft malicious requests containing PHP code. By submitting specially crafted form data through the PHP element, an attacker can execute arbitrary server-side PHP commands with the privileges of the web server process. The vulnerability affects Fabrik versions prior to 4.7.2; patched versions should be applied immediately.

## Affected products

- Fabrikar Fabrik < 4.7.2

## Timeline

- 2026-08-22: disclosed

## References

- [https://www.fabrikar.com/](https://www.fabrikar.com/)