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.

Affected

balbooa.com · balbooa.com Balbooa Forms extension for Joomla

CVSS v4.0 JOOMLA

10.0 CRITICALCVSS: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 v3.1 NVD

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

14.85% chance of exploitation in the next 30 days, 97th percentile

CISA KEV

added 2026-07-10

Nuclei

critical · CWE-434

Published

2026-07-09

Updated

2026-08-12

Proof-of-concept exploits (5)

• shinthink/CVE-2026-562912★ · 2026-07-11
• rimbadirgantara/CVE-2026-56291.yaml0★ · 2026-07-13
• 0xdenis77/CVE-2026-562911★ · 2026-07-13
• ChiefYoru/CVE-2026-56291_PoC0★ · 2026-07-18
• theendofabbys/CVE-2026-562910★ · 2026-10-08

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-56291.yaml

Security advisories

• https://mysites.guru/blog/balbooa-forms-unauthenticated-file-upload-flaw
• https://www.balbooa.com/joomla-forms

References

• CVE Record
• NVD entry

Related

• CVE-2025-32044
• CVE-2026-13001
• CVE-2026-14894
• CVE-2026-15158
• CVE-2026-15282
• CVE-2026-3891