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

Quick assessment

Affected
balbooa.com balbooa.com Balbooa Forms extension for Joomla
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Balbooa Balbooa Forms extension for Joomla是Balbooa公司的一款Joomla表单扩展组件。 Balbooa Forms extension for Joomla 1.0版本至2.4.0版本存在任意文件上传漏洞，该漏洞源于未经验证的任意文件上传，可能导致上传可执行文件并实现完全远程代码执行。

CVSS 10.0 · Critical KEV EPSS 14.85% · P97

Public Exploits 1

Nuclei · 1 CVE-2026-56291.yaml [template]

Affected Version Matrix 1

VendorProduct Version RangeStatus
balbooa.com balbooa.com Balbooa Forms extension for Joomla 1.0-2.4.0 affected
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I. Basic Information for CVE-2026-56291

Vulnerability Information
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Vulnerability Title
Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension < 2.4.1
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
Balbooa Forms extension for Joomla 任意文件上传漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Balbooa Balbooa Forms extension for Joomla是Balbooa公司的一款Joomla表单扩展组件。 Balbooa Forms extension for Joomla 1.0版本至2.4.0版本存在任意文件上传漏洞，该漏洞源于未经验证的任意文件上传，可能导致上传可执行文件并实现完全远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
balbooa.com balbooa.com Balbooa Forms extension for Joomla 1.0-2.4.0 -

II. Public POCs for CVE-2026-56291

# POC Description Source Link Shenlong Link
1 Joomla Balbooa Forms contains an unrestricted file upload vulnerability caused by lack of authentication checks, letting unauthenticated attackers upload executable files and achieve remote code execution. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-56291.yaml POC Details
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default-local-qwen3.6 · 12289 chars
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III. Intelligence Information for CVE-2026-56291

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Security Blog Posts for CVE-2026-56291 (1)

Other References for CVE-2026-56291 (1)

IV. Related Vulnerabilities

Same vendor: balbooa.com
Same weakness: CWE-434

V. Comments for CVE-2026-56291

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