ToolsCVE trackerATT&CKCIDRDNSEmail securityHeadersTrackersTLSMy connectionCSP builderEmail headersJWTCert decoderPassphrasePassword checkHash & encodesecurity.txtDNSSEC & CAA

d4 · tools · cve

CVE-2026-56291.

Severity, exploit probability and exploitation status for one vulnerability, drawn from NVD, FIRST EPSS and CISA's exploited catalogue.

← back to the CVE tracker

known exploited Balbooa Forms Unrestricted Upload of File with Dangerous Type Vulnerability

Vendor / product
Balbooa - Forms
Listed by CISA
2026-07-10
Federal fix deadline
2026-07-13 (passed)
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.

Scores

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:
EPSS
76.1% estimated probability of exploitation in the next 30 days (higher than 99% of all CVEs)
Weakness class
CWE-434

ATT&CK techniques

inferred from weakness class no curated mapping exists for this CVE; these are the techniques typically seen with CWE-434 vulnerabilities

ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationStealthDefense ImpairmentCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact

T1190 Exploit Public-Facing Application

Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

Inferred from CWE-434.

T1059 Command and Scripting Interpreter

Execution

Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.

Inferred from CWE-434.

T1574 Hijack Execution Flow

ExecutionStealth

Adversaries may execute their own malicious payloads by hijacking the way operating systems run programs.

via sub-technique T1574.010 Services File Permissions Weakness

Inferred from CWE-434.

T1505 Server Software Component

Persistence

Adversaries may abuse legitimate extensible development features of servers to establish persistent access to systems.

via sub-technique T1505.003 Web Shell

Inferred from CWE-434.

See these techniques on the full ATT&CK matrix.

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.

Published
2026-07-09
Last modified
2026-07-24
NVD status
Analyzed

References

CVSS measures how bad exploitation would be; EPSS estimates how likely exploitation is within 30 days; the CISA listing means it is already happening. Read them together: a CVSS 9.8 with EPSS 0.04% is usually less urgent than a CVSS 7.2 on the exploited list. Data: NVD, FIRST EPSS, CISA KEV; detail is cached for a week, scores for a day. ATT&CK techniques come from the CTID KEV mappings project where a curated mapping exists, otherwise they are inferred from the weakness class and labelled as such. ATT&CK is a registered trademark of The MITRE Corporation. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.