CVE-2022-35944 October CMS Safe Mode bypass leads to authenticated RCE (Remote Code Execution)

Medium 6.2 Published Updated

Authenticated attackers with editor permissions can bypass Safe Mode to inject PHP code, leading to remote code execution.

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

What is CVE-2022-35944?

CVE-2022-35944 is a medium-severity code injection vulnerability in Octobercms October, published on 13 Oct 2022. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

October is a self-hosted Content Management System (CMS) platform based on the Laravel PHP Framework. This vulnerability only affects installations that rely on the safe mode restriction, commonly used when providing public access to the admin panel. Assuming an attacker has access to the admin panel and permission to open the "Editor" section, they can bypass the Safe Mode (`cms.safe_mode`) restriction to introduce new PHP code in a CMS template using a specially crafted request. The issue has been patched in versions 2.2.34 and 3.0.66.

Weakness: CWE-94

Which versions are affected by CVE-2022-35944?

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

PackageAffectedFixed in
october/system PackagistFrom 2.0.02.2.34
october/system PackagistFrom 2.0.02.2.34
october/system PackagistFrom 3.0.03.0.66
october/system PackagistFrom 3.0.03.0.66

Products include Octobercms October.

How do I fix CVE-2022-35944?

Upgrade october/system to a fixed version for your release line: 2.2.34 or 3.0.66.

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

Is CVE-2022-35944 being exploited?

There is no known exploitation of CVE-2022-35944 in the wild and no public exploit code.

All Octobercms October vulnerabilities

Sources

Also known as GHSA-x4q7-m6fp-4v9v.

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