CVE-2026-67358 Joomla Extension - j2commerce.com - Download quota manipulation in J2Store 1.0.0-3.3.20, 4.0.0-4.0.20, 4.1.0-4.1.5

Medium 5.3 Published Updated

Authenticated users can manipulate download quotas for other orders and bypass CSRF protections in the J2Store Joomla extension.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-67358?

CVE-2026-67358 is a medium-severity vulnerability in j2commerce.com J2Store extension for Joomla, published on 21 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Joomla Extension - j2commerce.com - Download quota manipulation in J2Store 1.0.0-3.3.20, 4.0.0-4.0.20, 4.1.0-4.1.5 - An authenticated user with a valid order token could increment the download limit counter on a download record belonging to a different order. The endpoint also lacked a CSRF token.

Weakness: CWE-639, CWE-352

Which versions are affected by CVE-2026-67358?

How do I fix CVE-2026-67358?

No fix has been published for CVE-2026-67358 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-67358 being exploited?

There is no known exploitation of CVE-2026-67358 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-mrf5-4pj3-6jvf.

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