CVE-2026-56291

CriticalActively exploited (CISA KEV)

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.

SeverityCritical
CVSS9.8
Exploit probability—
ProductBalbooa Forms
PublishedJul 9, 2026
First seenJul 9, 2026
Added to KEVJul 10, 2026

How to fix

CISA required action

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CISA due date: Jul 13, 2026
Update
  • balbooa forms2.4.1 or later

Affected products

ProductAffected versionsFixed in
balbooa formsv < 2.4.12.4.1

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

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CVE-2026-56291 · Balbooa Forms · Dark Radar