CVE-2023-44382 October CMS safe mode bypass using Twig sandbox escape

Critical 9.1 Published Updated

Authenticated users with editor permissions can bypass safe mode via Twig sandbox escape to execute arbitrary PHP code.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2023-44382?

CVE-2023-44382 is a critical code injection vulnerability in Octobercms October, published on 1 Dec 2023. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

October is a Content Management System (CMS) and web platform to assist with development workflow. An authenticated backend user with the `editor.cms_pages`, `editor.cms_layouts`, or `editor.cms_partials` permissions who would normally not be permitted to provide PHP code to be executed by the CMS due to `cms.safe_mode` being enabled can write specific Twig code to escape the Twig sandbox and execute arbitrary PHP. This issue has been patched in 3.4.15.

Weakness: CWE-94

Which versions are affected by CVE-2023-44382?

2 open source packages ship an affected version, including october/system. It affects 1 product.

PackageAffectedFixed in
october/system PackagistFrom 3.0.03.4.15
october/system PackagistFrom 3.0.03.4.15

Products include Octobercms October.

How do I fix CVE-2023-44382?

Upgrade october/system to 3.4.15 or later.

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

Is CVE-2023-44382 being exploited?

There is no known exploitation of CVE-2023-44382 in the wild and no public exploit code.

All Octobercms October vulnerabilities

Sources

Also known as GHSA-p8q3-h652-65vx.

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