CVE-2026-56291KEV · OVERDUECWE-434

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

Critical · published July 9, 2026

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 10.0. It is confirmed in active exploitation. It sits in the 96.7th percentile for exploit probability.

103
days past CISA
deadline
CVSS v4.0
10.0
EPSS
15%
Percentile
96.7
In the wild
Confirmed
What it is

🚨 An unauthenticated file upload in Balbooa Forms puts your site at serious risk! 🔥 Think of it like leaving the back door of a restaurant wide open, allowing anyone to stroll in and cook up their own recipes without a single background check. That's exactly what this vulnerability lets an attacker do – they can upload malicious files and whip up chaos right in your server's kitchen! An attacker could upload any executable file, which could lead to full remote code execution (RCE). This means they could gain complete control over your server, accessing sensitive data, altering content, or even taking down your site completely - absolutely devastating!

Put simply

Think of it like leaving the back door of a restaurant wide open, allowing anyone to stroll in and cook up their own recipes without a single background check. That's exactly what this vulnerability lets an attacker do – they can upload malicious files and whip up chaos right in your server's kitchen! The Balbooa Forms extension versions below 2.4.1 allow unauthenticated users to upload files without any validation checks. This vulnerability permits malicious files to be uploaded, facilitating remote code execution on the server.

What to do

An attacker could upload any executable file, which could lead to full remote code execution (RCE). This means they could gain complete control over your server, accessing sensitive data, altering content, or even taking down your site completely - absolutely devastating! Immediately update the Balbooa Forms extension to version 2.4.1 or later to close this dangerous gap. Additionally, review your file upload handling and implement necessary security measures like file type validation and authentication checks. Don't wait – act now! You've got this! With these steps, you can secure your site and be a security hero! 🛡️

The record
Technical detail
CVSS v4.0
10.0 · CRITICAL
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
EPSS
0.14854 · 96.7th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-07-09T09:53Z
KEV added
2026-07-10 · due 2026-07-13
EPSS history
Timeline
  • 10 JUL 00:00Z
    Added to CISA KEV — remediate by Jul 13
    kev
  • 09 JUL 09:53Z
    Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension < 2.4.1
    cvelistv5