CVE-2026-56291

Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension < 2.4.1

Exploited in attacks Critical 10.0 Attack chance: 15%

What it is

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.

CISA: Balbooa Forms contains an unrestricted upload of file with dangerous type vulnerability that allows an unauthenticated arbitrary file upload which could allow uploading of executable files leading to full RCE.

What to do

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.

Deadline for US federal agencies: July 13, 2026

Added to the CISA list: July 10, 2026
Published: July 9, 2026
Severity: Critical 10.0 CVSS 4.0
Chance of attacks in the next 30 days (EPSS): 15% in the top 3.3% of all known vulnerabilities
Weakness: CWE-434
More details: NVD · CVE.org · CISA

All references (2)

Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.