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CVE-2025-49486HighCVSS 8.6CVE published 18 July 2025Added to mySites.guru 18 July 2025

Balbooa Gallery (com_bagallery) 1.0.0 to 2.4.0 - Authenticated Stored XSS

Balbooa Gallery versions 1.0.0 through 2.4.0 allow privileged users to store malicious scripts in gallery items. The injected payload is saved by the component and executed in the browser of any user who later views the affected gallery, so a lower-privileged content author can escalate against an administrator. Fixed in 2.4.1 (released 5 June 2025), whose changelog records a "Cross-Site Scripting (XSS) web security vulnerability" fix. Update to 2.4.1 or later; 2.5.0 adds Joomla 6 compatibility. Note this is the Gallery component - the separate Balbooa Forms flaw is covered by its own rule. Also folded into this rule: CVE-2023-23757 (CVSS 3.1 9.8 CRITICAL), an unauthenticated SQL injection the Joomla CNA records against "BA Gallery" 1.0.0-1.2.0, attributed to bestaddon.com rather than Balbooa. That range sits entirely inside this rule's 1.0.0 to 2.4.0 window and prod carries com_bagallery installs at 1.2, so any affected install is already flagged either way. Recorded here so the CVE does not resurface as new on the next NVD sync.

Is my site affected?

Affected
Balbooa Gallery from 1.0.0 up to and including 2.4.0
Fixed in
Update to 2.4.1 or later
What to do
Update Balbooa Gallery to 2.4.1 or later.
Check whether your sites are affected

How CVE-2025-49486 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.

8.6 High

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

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:N Attack requirements
None. Works against any affected install
PR:H Privileges required
High. Needs an account with elevated rights
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:N Confidentiality
None. Other systems keep their data
SI:N Integrity
None. Other systems keep their integrity
SA:N Availability
None. Other systems stay up

The rule below is rated Medium for the set of 2 CVEs it covers together, not for this record on its own.

Timeline

  1. 18 July 2025CVE-2025-49486 record published by its CNA
  2. 18 July 2025mySites.guru check added for Balbooa Gallery (from 1.0.0 up to and including 2.4.0)

Rule details

Other vulnerabilities in Balbooa Gallery

Updating for CVE-2025-49486 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 Gallery

Latest safe version: 2.4.1

References

CVE-2025-49486 questions

Which versions are affected by CVE-2025-49486?
CVE-2025-49486 affects Balbooa Gallery from 1.0.0 up to and including 2.4.0.
How do I fix CVE-2025-49486?
Update Balbooa Gallery to 2.4.1 or later. Then confirm the installed version on the Joomla administrator's Extensions: Manage screen.
How severe is CVE-2025-49486?
Joomla CNA scores it 8.6 (High) under CVSS 4.0. In plain terms: reachable across the internet, needs an account with elevated rights 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 5 October 2026.