Critical severity · published Jul 9, 2026
CVE-2026-56291
Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension < 2.4.1
In wildKEV
9.8
CVSS
14.9%
EPSS
Yes
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)14.9% · higher than 97% of CVEs
Exploited in the wildYes
CISA KEVListed Jul 10, 2026
Federal remediation dueJul 13, 2026
Ransomware campaign useNot known
Affected products
Which versions
BB
balbooa.com Balbooa Forms extension for Joomla · balbooa.com
1.0-2.4.0 · source: vendor
FO
Forms · Balbooa
before 2.4.1 · source: NVD, KEV
In the news
AdvisoryHigh
CISA Adds Two Known Exploited Vulnerabilities to Catalog
CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation.
CVE-2026-48939 iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability
CVE-2026-56291 Balbooa Forms Unrestricted Upload of File with Dangerous Type Vulnerability
These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise.
Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies. BOD 26-04 reinforces the importance of the KEV Catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s KEV Catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied.
While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV Catalog vulnerabilities . CISA will continue to add vulnerabilities to the catalog that meet the specified criteria .
Aware ...
Jul 10, 2026·CISA Advisories
VulnerabilityCritical
[CISA KEV] CVE-2026-56291: Balbooa Forms - 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.
FOFormsCVE-2026-56291
Jul 10, 2026·CISA KEV
Affected product
BB
balbooa.com Balbooa Forms extension for Joomla
balbooa.com
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-56291
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-56291
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
product
https://www.balbooa.com/joomla-forms
third-party-advisory
https://mysites.guru/blog/balbooa-forms-unauthenticated-file-upload-flaw/
