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CriticalA PHP security release fixes two CVSS 9.2 flaws, and PHP 8.1 and older get no patchWhat it means for your site
CVE-2026-102425CriticalCVSS 9.5CVE published 29 September 2026Added to mySites.guru 29 September 2026

Balbooa Forms (com_baforms) below 2.4.3.4 - Unauthenticated PHP Code Injection (RCE), Local File Disclosure via Auto-Reply Attachments, Stored XSS and Attachment Deletion

Balbooa Forms before 2.4.3.4 (every release from 1.0.0 to 2.4.3.3, per the Joomla CNA) has five flaws, all reachable by an anonymous visitor through a public form. CVE-2026-102425 (CVSS 4.0 9.5): the optional post-submission PHP action replaces field shortcodes with the raw submitted value before eval(), so a form that uses a PHP action with a visitor-supplied shortcode inside a double-quoted string allows remote code execution. CVE-2026-102424 (8.9): on a form with auto-reply and attach-uploaded-files enabled, a guest can submit a traversal filename such as ../../../../configuration.php and receive any file readable by the site in the auto-reply email. CVE-2026-101127 (8.6): the original upload filename is stored verbatim and rendered into the administrator submission view, giving stored XSS against administrators. CVE-2026-101112 (6.9): removeTmpAttachment deletes any attachment by ID without binding it to the uploader session. CVE-2026-101126 (6.9): final submission trusts client-supplied attachment filenames and display names, allowing cross-session claiming and tampering. Reported by Sergiy Tryzhychynskyi and Lukasz Rybak, coordinated by the Joomla Security Strike Team. Update Balbooa Forms to 2.4.3.4 or later and confirm the component reports 2.4.3.4. If a form sent attachments in auto-replies, rotate the database password in configuration.php. Versions below 2.4.3.2 are also affected by the earlier CVSS 10.0 Balbooa Forms advisories.

Is my site affected?

Affected
Balbooa Forms before 2.4.3.4
Fixed in
2.4.3.4
What to do
Update Balbooa Forms to 2.4.3.4 or later.
Check whether your sites are affected

How CVE-2026-102425 is scored

The base metrics as Joomla CNA published them, and what each one means for a site running an affected version. Threat and environmental metrics are left out: they describe a moment or a particular install rather than the flaw.

9.5 Critical

CVSS 4.0, scored by Joomla CNA
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

How it is reached

AV:N Attack vector
Network. Reachable across the internet
AC:L Attack complexity
Low. Nothing to work around, it just works
AT:P Attack requirements
Present. Needs a particular deployment or race to line up
PR:N Privileges required
None. No account needed
UI:N User interaction
None. Nobody has to be tricked into anything

What it does to the site

VC:H Confidentiality
High. Everything the site holds can be read
VI:H Integrity
High. Data and files can be altered at will
VA:H Availability
High. The site can be taken down

What it does beyond the site

SC:H Confidentiality
High. Data on other systems can be read
SI:H Integrity
High. Other systems can be altered
SA:H Availability
High. Other systems can be taken down

Timeline

  1. 29 September 2026CVE-2026-102425 record published by its CNA
  2. 29 September 2026mySites.guru check added for Balbooa Forms (before 2.4.3.4)
  3. 29 September 2026We published: Balbooa Forms 2.4.3.4 Fixes Five Security Issues

Rule details

Our disclosure post

Balbooa Forms 2.4.3.4 Fixes Five Security Issues

Balbooa Forms 2.4.3.4 Fixes Five Security Issues

Balbooa Forms 2.4.3.4 fixes five CVEs in the Joomla form builder, led by a 9.5 unauthenticated RCE. Every version below 2.4.3.4 is affected. Update now.

Other vulnerabilities in Balbooa Forms

Updating for CVE-2026-102425 alone can leave a site on a release another rule still matches. These are the other flaws we check for in the same extension.

Balbooa Forms

Latest safe version: 2.4.3.4

All 10 CVEs in Balbooa Forms

References

CVE-2026-102425 questions

Which versions are affected by CVE-2026-102425?
CVE-2026-102425 affects Balbooa Forms before 2.4.3.4. The fix is in 2.4.3.4.
How do I fix CVE-2026-102425?
Update Balbooa Forms to 2.4.3.4 or later. Then confirm the installed version on the Joomla administrator's Extensions: Manage screen.
How severe is CVE-2026-102425?
Joomla CNA scores it 9.5 (Critical) under CVSS 4.0. In plain terms: reachable across the internet, no account needed and nobody has to be tricked into anything.

Running an affected version on a site you manage?

A free audit tells you which of your Joomla and WordPress sites run an affected version, which are out of date, and which have not been backed up. No card required. If a site is already compromised, fix.mysites.guru is a single fixed fee per incident, usually resolved the same day.

This check is part of the mySites.guru Joomla vulnerability scanner, which reads every installed extension's version on each audit. Browse the rest of the Joomla vulnerability database.

Rules current as of 22 October 2026.