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CVE-2026-49048HighCVSS 8.7CVE published 28 June 2026Added to mySites.guru 17 July 2026

JoomCCK (com_joomcck) below 6.4.1 - Unauthenticated SQL Injection

JoomCCK (JoomCoder) versions up to and including 6.4.0 contain an unauthenticated SQL injection (CVE-2026-49048): a front-end controller task concatenates a request parameter directly into two SQL statements with no escaping or parameterisation, so an anonymous visitor can read from the site database. Scored CVSS 4.0 8.7 (High) by the Joomla CNA, and 9.8 (Critical) on the older CVSS 3.1 scale. Reported by Kamil Soltanov (not by mySites.guru). Update to JoomCCK 6.4.1 or later.

Is my site affected?

Affected
JoomCCK before 6.4.1
Fixed in
6.4.1
What to do
Update JoomCCK to 6.4.1 or later.
Check whether your sites are affected

How CVE-2026-49048 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.

8.7 High

CVSS 4.0, scored by Joomla CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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:N Integrity
None. Nothing can be altered
VA:N Availability
None. The site stays up

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

mySites.guru rates this Critical. Where our assessment and the published record differ, your sites are checked against ours.

Timeline

  1. 28 June 2026CVE-2026-49048 record published by its CNA
  2. 17 July 2026mySites.guru check added for JoomCCK (before 6.4.1)
  3. 17 July 2026We published: We Are Not the Only Ones Auditing Joomla Extensions

Rule details

Our disclosure post

We Are Not the Only Ones Auditing Joomla Extensions

We Are Not the Only Ones Auditing Joomla Extensions

Two Joomla extension flaws went public via the Joomla CNA: a SQL injection in JoomCCK and a stored XSS in ChronoForms. Neither was ours. Update now.

Other vulnerabilities in JoomCCK

Updating for CVE-2026-49048 alone can leave a site on a release another rule still matches. These are the other flaws we check for in the same extension.

JoomCCK

Latest safe version: 6.4.1

References

CVE-2026-49048 questions

Which versions are affected by CVE-2026-49048?
CVE-2026-49048 affects JoomCCK before 6.4.1. The fix is in 6.4.1.
How do I fix CVE-2026-49048?
Update JoomCCK to 6.4.1 or later. Then confirm the installed version on the Joomla administrator's Extensions: Manage screen.
How severe is CVE-2026-49048?
Joomla CNA scores it 8.7 (High) 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 5 October 2026.