CVE-2023-6449 Contact Form 7 <= 5.8.3 - Authenticated (Editor+) Arbitrary File Upload

Medium 6.6 Published Updated

Authenticated editors can upload arbitrary files, potentially leading to remote code execution if combined with other vulnerabilities or specific server configurations.

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

What is CVE-2023-6449?

CVE-2023-6449 is a medium-severity vulnerability in rocklobsterinc Contact Form 7, published on 1 Dec 2023. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

The Contact Form 7 plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'validate' function and insufficient blocklisting on the 'wpcf7_antiscript_file_name' function in versions up to, and including, 5.8.3. This makes it possible for authenticated attackers with editor-level capabilities or above to upload arbitrary files on the affected site's server, but due to the htaccess configuration, remote code cannot be executed in most cases. By default, the file will be deleted from the server immediately. However, in some cases, other plugins may make it possible for the file to live on the server longer. This can make remote code execution possible when combined with another vulnerability, such as local file inclusion.

Weakness: CWE-434

Which versions are affected by CVE-2023-6449?

It affects 1 product.

Products include Rocklobster Contact Form 7.

How do I fix CVE-2023-6449?

No fix has been published for CVE-2023-6449 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-6449 being exploited?

There is no known exploitation of CVE-2023-6449 in the wild and no public exploit code.

Sources

Also known as GHSA-hpmw-w222-jm7v.

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