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CVE-2026-102428CriticalCVSS 9.3CVE published 5 October 2026Added to mySites.guru 5 October 2026

OS CCK (com_os_cck) below 8.3.16 - Unauthenticated SQL Injection in record sorting

OrdaSoft OS CCK versions before 8.3.16 (Light/free line) are affected by an unauthenticated SQL injection in the front-end listing views, where the record-sort parameters (order_field / order_direction) were passed into the query ORDER BY clause without being restricted to known-safe columns (CVE-2026-102428, CVSS 4.0 9.3 Critical as scored by the Joomla CNA, which gives the affected range as 1.0.0 to 8.3.15). OrdaSoft fixed this in 8.3.16 (released 29 September 2026) by validating the sort field against the real entity columns, alongside image-upload and file-handling hardening. This is the same class as four OrdaSoft extension flaws disclosed in the same September 2026 wave - Real Estate Manager (CVE-2026-100752), Vehicle Manager (CVE-2026-101108), Book Library (CVE-2026-101110) and OS Gallery (CVE-2026-88854) - all unauthenticated SQL injection via the same sort parameters on publicly reachable listing pages. Important: OrdaSoft's own Joomla update manifest still advertises 8.3.14, so affected sites are NOT offered 8.3.16 automatically and must update manually from ordasoft.com. The Pro-edition fixed version could not be independently confirmed. Update to 8.3.16 or later.

Is my site affected?

Affected
OS CCK before 8.3.16
Fixed in
8.3.16
What to do
Update OS CCK to 8.3.16 or later.
Check whether your sites are affected

How CVE-2026-102428 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. 30 September 2026We published: OS CCK 8.3.16 for Joomla Fixes a No-Login PHP Upload and an SQL Injection, but the Updater Still Offers 8.3.14
  2. 5 October 2026CVE-2026-102428 record published by its CNA
  3. 5 October 2026mySites.guru check added for OS CCK (before 8.3.16)

Rule details

Our disclosure post

OS CCK 8.3.16 for Joomla Fixes a No-Login PHP Upload and an SQL Injection, but the Updater Still Offers 8.3.14

OS CCK 8.3.16 for Joomla Fixes a No-Login PHP Upload and an SQL Injection, but the Updater Still Offers 8.3.14

OS CCK for Joomla before 8.3.16 had a no-login PHP upload (CVE-2026-102427) and SQL injection (CVE-2026-102428). The updater won't offer the fix.

Other vulnerabilities in OS CCK

Updating for CVE-2026-102428 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 CCK

Latest safe version: 8.3.16

References

CVE-2026-102428 questions

Which versions are affected by CVE-2026-102428?
CVE-2026-102428 affects OS CCK before 8.3.16. The fix is in 8.3.16.
How do I fix CVE-2026-102428?
Update OS CCK to 8.3.16 or later. Then confirm the installed version on the Joomla administrator's Extensions: Manage screen.
How severe is CVE-2026-102428?
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 8 October 2026.