CVE-2026-64796 Joomla Extension - regularlabs.com - various code injection vectors in Sourcerer extension

Critical 9.8 Published Updated

Attackers can execute arbitrary PHP code or bypass security restrictions in the Joomla Sourcerer extension due to insufficient permission checks and input validation.

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

What is CVE-2026-64796?

CVE-2026-64796 is a critical code injection vulnerability in regularlabs.com Sourcerer extension for Joomla, published on 22 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Joomla Extension - regularlabs.com - various code injection vectors in Sourcerer extension - Free did not require both the article creator and last modifier to be Super Users before executing article PHP. Pro did not consistently enforce configured CSS, JavaScript and PHP permissions across tags, attributes, files and both article owners. PHP include attributes could also escape the configured include folder, and executable script/style variants could bypass detection.

Weakness: CWE-284

Which versions are affected by CVE-2026-64796?

How do I fix CVE-2026-64796?

No fix has been published for CVE-2026-64796 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-64796 being exploited?

There is no known exploitation of CVE-2026-64796 in the wild and no public exploit code.

Sources

Also known as GHSA-p85f-w9w7-64vg.

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