Actively exploited · Published Jul 9, 2026 · Assigned by Joomla

CVE-2026-56291Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension < 2.4.1

Critical 10.0 Exploited

In plain English

A critical-severity unrestricted file upload in balbooa.com Balbooa Forms extension for Joomla from balbooa.com. Attackers are actively exploiting it in the wild (listed by CISA on July 10, 2026). The chance it is exploited in the next 30 days is estimated at 14.9% (higher than 97% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei, public proof-of-concept code. 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.

Severity (CVSS 4.0)10.0Critical
Exploit odds (30 days)14.9%top 3.3% of all CVEs
Exploited in the wildYesCISA KEV since Jul 10, 2026
Attack tooling2Nuclei, Public PoC

CISA guidance

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.

Federal agencies must remediate by Jul 13, 2026.

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.

Affected products (as reported)

Weakness: CWE-434 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y/U:Red

References