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CVE-2026-88854CriticalCVSS 9.3CVE published 20 September 2026Added to mySites.guru 20 September 2026

OS Gallery (com_osgallery) below 6.2.7 - Unauthenticated SQL Injection via Public Search Module

CVE-2026-88854 (CVSS 9.3): showSearchResult() and showSearchResultAjax() in OrdaSoft's OS Gallery component before 6.2.7 read the textsearch/searchText request parameter with $input->getVar(), which is not a real Joomla filter method and falls through to a filter that strips HTML tags but does not touch quotes or SQL syntax. The value is concatenated directly into a LIKE clause with no escaping. The endpoint requires no login: it is reached via the public, commonly-published mod_osgallery_search search box, so any anonymous site visitor can inject a UNION SELECT and read arbitrary database content, including password hashes. Update to 6.2.7 or later.

Is my site affected?

Affected
OS Gallery before 6.2.7
Fixed in
6.2.7
What to do
Update OS Gallery to 6.2.7 or later.
Check whether your sites are affected

How CVE-2026-88854 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.

9.3 Critical

CVSS 4.0, scored by Joomla CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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: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: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

Timeline

  1. 20 September 2026CVE-2026-88854 record published by its CNA
  2. 20 September 2026mySites.guru check added for OS Gallery (before 6.2.7)

Rule details

Other vulnerabilities in OS Gallery

Updating for CVE-2026-88854 alone can leave a site on a release another rule still matches. These are the other flaws we check for in the same extension.

OS Gallery

Latest safe version: 6.2.7

References

CVE-2026-88854 questions

Which versions are affected by CVE-2026-88854?
CVE-2026-88854 affects OS Gallery before 6.2.7. The fix is in 6.2.7.
How do I fix CVE-2026-88854?
Update OS Gallery to 6.2.7 or later. Then confirm the installed version on the Joomla administrator's Extensions: Manage screen.
How severe is CVE-2026-88854?
Joomla CNA scores it 9.3 (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 10 October 2026.