CVE-2026-56291 Balbooa Forms Unrestricted Upload of File with Dangerous Type

Exploited in the wild Critical 10.0 Published Updated

Unauthenticated attackers can upload executable files to the Balbooa Forms extension, leading to remote code execution.

Exploited in the wild
Since 10 Jul 2026
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-56291?

CVE-2026-56291 is a critical vulnerability in balbooa.com Balbooa Forms extension for Joomla, published on 9 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension < 2.4.1 - The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.

Weakness: CWE-434

Which versions are affected by CVE-2026-56291?

It affects 1 product.

Products include Balbooa Forms.

How do I fix CVE-2026-56291?

No fix has been published for CVE-2026-56291 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 13 Jul 2026.

Is CVE-2026-56291 being exploited?

Yes. Attackers have exploited CVE-2026-56291 in the wild since at least 10 Jul 2026.

Public exploit code: 1 Nuclei template and 5 proofs of concept on GitHub.

Sources

Also known as GHSA-28f5-j5p5-xmmw.

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