CVE-2023-40035 Craft CMS vulnerable to Remote Code Execution via validatePath bypass

High 7.2 Published Updated

Authenticated attackers can achieve remote code execution in Craft CMS by bypassing path validation when admin changes are enabled.

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

What is CVE-2023-40035?

CVE-2023-40035 is a high-severity code injection vulnerability in Craftcms Craft Cms, published on 23 Aug 2023. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Craft is a CMS for creating custom digital experiences on the web and beyond. Bypassing the validatePath function can lead to potential remote code execution. This vulnerability can lead to malicious control of vulnerable systems and data exfiltrations. Although the vulnerability is exploitable only in the authenticated users, configuration with ALLOW_ADMIN_CHANGES=true, there is still a potential security threat (Remote Code Execution). This issue has been patched in version 4.4.15 and version 3.8.15.

Weakness: CWE-74

Which versions are affected by CVE-2023-40035?

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

PackageAffectedFixed in
craftcms/cms PackagistFrom 3.0.03.8.15
craftcms/cms PackagistFrom 3.0.03.8.15
craftcms/cms PackagistFrom 4.0.0-RC14.4.15
craftcms/cms PackagistFrom 4.0.0-RC14.4.15

Products include Craftcms Craft Cms.

How do I fix CVE-2023-40035?

Upgrade craftcms/cms to a fixed version for your release line: 3.8.15 or 4.4.15.

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

Is CVE-2023-40035 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-40035 exists.

All Craftcms Craft Cms vulnerabilities

Sources

Also known as GHSA-44wr-rmwq-3phw.

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