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

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: yes — in CISA KEV since 2026-07-10
EPSS: 14.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-07-09 · updated 2026-10-25
Weakness: CWE-434

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.

Affected products

balbooa.com Balbooa Forms extension for Joomla: before 2.4.1 — fixed in 2.4.1

How to fix

Upgrade to a fixed version: balbooa.com Balbooa Forms extension for Joomla 2.4.1. Check the vendor advisory for mitigations.

References

https://mysites.guru/blog/balbooa-forms-unauthenticated-file-upload-flaw/
https://www.balbooa.com/joomla-forms
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-56291

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