CVE-2026-56291
Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension < 2.4.1
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension < 2.4.1
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.
- Record
CVE-2026-56291- CVSS 4.0
- 10.0 Critical
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 - Weakness
- CWE-434
- Updated
- 2026-11-02
EUVDEUVD-2026-42573
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.
- Record
EUVD-2026-42573- CVSS 4.0
- 10.0 Critical
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-28f5-j5p5-xmmw
The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that...
The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.
- Record
GHSA-28f5-j5p5-xmmw- CVSS 4.0
- 10.0 Critical
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:X/U:Red - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
CISA KEV No score
Balbooa Forms Unrestricted Upload of File with Dangerous Type Vulnerability
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.
- Record
CVE-2026-56291- Weakness
- CWE-434
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-56291- CVSS 4.0
- 10.0 Critical
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:X/U:Red - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | shinthink/CVE-2026-56291 | 2026-07-11 |
| PoC in GitHub | 0xdenis77/CVE-2026-56291 | 2026-07-13 |
| PoC in GitHub | rimbadirgantara/CVE-2026-56291.yaml | 2026-07-13 |
| PoC in GitHub | ChiefYoru/CVE-2026-56291_PoC | 2026-07-18 |
| PoC in GitHub | theendofabbys/CVE-2026-56291 | 2026-10-08 |
| Nuclei | Balbooa Forms < 2.4.1 - Unauthenticated Arbitrary File Upload |
History
| Recorded | Changed | Sources |
|---|---|---|
| exploitation, exploits | ||
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, CISA KEV, Nuclei, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-56291 is a critical vulnerability (CVSS 10.0) in Balbooa Forms, published July 9, 2026. CISA lists it as known to be exploited, since July 10, 2026. EUVD reports exploitation since July 10, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 14.9%, the 96th percentile. No source names a fixed version.