Balbooa Forms Unrestricted Upload of File with Dangerous Type Vulnerability
balbooa.com — balbooa.com Balbooa Forms extension for Joomla
The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.
10.0
8.6%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- None
- User interaction
- None
- Confidentiality (Vulnerable System)
- High
- Integrity (Vulnerable System)
- High
- Availability (Vulnerable System)
- High
- Confidentiality (Subsequent System)
- High
- Integrity (Subsequent System)
- High
- Availability (Subsequent System)
- High
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
- Published
- Jul 9, 2026
- Modified
- Jul 11, 2026
- Added to KEV
- Jul 10, 2026
- Federal patch due
- Jul 13, 2026
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.
Weakness classification
Affected packages
Proof-of-concept & exploitation references
4 foundWeaponization
Public repositories whose name or description references CVE-2026-56291, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit - cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
- 0xdenis77/CVE-2026-56291★ 1
Mendeteksi versi (passive detection) & Exploitation CVE POC
updated Jul 14, 2026
- shinthink/CVE-2026-56291★ 1
Balbooa Forms (com_baforms) < 2.4.1 — Unauthenticated File Upload to RCE via form.uploadAttachmentFile | CVSS 9.8 | CISA KEV
updated Jul 18, 2026
- rimbadirgantara/CVE-2026-56291.yaml★ 0
nuclei template for CVE-2026-56291
updated Jul 13, 2026
- ChiefYoru/CVE-2026-56291_PoC★ 0
The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.
updated Jul 18, 2026
References
Frequently asked questions
What is CVE-2026-56291?
The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.
How severe is CVE-2026-56291?
CVE-2026-56291 has a CVSS base score of 10.0 out of 10 (CVSS 4.0).
Is CVE-2026-56291 actively exploited in the wild?
Yes. CVE-2026-56291 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Jul 10, 2026, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2026-56291?
8.6% - meaning FIRST.org's EPSS model estimates a 8.6% probability this vulnerability will be exploited in the wild within 30 days (95% percentile among all scored CVEs).
Is there exploit tooling available for CVE-2026-56291?
Yes - a public Nuclei template referencing CVE-2026-56291 exist in public repositories we checked. We also found 4 public GitHub repositories referencing this CVE.
What type of vulnerability is CVE-2026-56291?
CVE-2026-56291 is classified under CWE-434 (CWE-434: Unrestricted Upload of File with Dangerous Type).
Cross-checked against
Impactr finds and proves whether CVE-2026-56291 - or flaws like it - are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.
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