---
id: CVE-2026-102425
title: >-
  Joomla Extension - balbooa.com - Unauthenticated RCE via field shortcode
  injection in Balbooa Forms < 2.4.3.4 - Balbooa Forms supports
  administrator-defined PHP code which runs after a public form submission
summary: >-
  Joomla Extension - balbooa.com - Unauthenticated RCE via field shortcode
  injection in Balbooa Forms < 2.4.3.4 - Balbooa Forms supports
  administrator-defined PHP code which runs after a public form submission. The
  feature also supports fo…
severity: critical
cvss: 10
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-94
vendor: balbooa
product: forms
affected:
  - forms < 2.4.3.4
patched:
  - forms 2.4.3.4
published: '2026-09-29'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T16:48:10.717'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-102425'
references:
  - url: 'https://www.balbooa.com/'
    label: security@joomla.org
tags:
  - nvd
  - exploit-available
  - cve.org
epss: 0.00586
epssPercentile: 0.47833
exploits:
  github: 2
  githubRepos:
    - 'https://github.com/murrez/CVE-2026-102425'
    - 'https://github.com/tonydelouvre/CVE-2026-102425'
  checkedAt: '2026-10-27T16:53:21.941Z'
exploitAvailable: true
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-30T19:51:16.490361Z'
scores:
  nvd: 10
  cna: 9.5
ingestedAt: '2026-09-29T17:41:02.204Z'
---

## Overview

Joomla Extension - balbooa.com - Unauthenticated RCE via field shortcode injection in Balbooa Forms < 2.4.3.4 - Balbooa Forms supports administrator-defined PHP code which runs after a public form submission. The feature also supports form-field shortcodes inside that PHP. Before calling `eval()`, the component replaces each shortcode with the raw value submitted by the visitor, leading to an RCE vector. A public form must use the product's optional PHP-after-submission action and interpolate an attacker-controlled field shortcode inside a double-quoted PHP string to be vulnerable.

## Affected

- `forms < 2.4.3.4`

## Remediation

Upgrade past the affected range:

- `forms 2.4.3.4`