CVE-2021-34639 WordPress Download Manager <= 3.1.24 Authenticated Arbitrary File Upload

High 7.5 Published Updated

Authenticated users can upload malicious files with double extensions, potentially leading to remote code execution on WordPress sites using this plugin.

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

What is CVE-2021-34639?

CVE-2021-34639 is a high-severity vulnerability in W3 Eden, Inc. WordPress Download Manager, published on 5 Aug 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Authenticated File Upload in WordPress Download Manager <= 3.1.24 allows authenticated (Author+) users to upload files with a double extension, e.g. "payload.php.png" which is executable in some configurations. This issue affects: WordPress Download Manager version 3.1.24 and prior versions.

Weakness: CWE-434, CWE-646

Which versions are affected by CVE-2021-34639?

It affects 1 product.

Products include W3eden Download Manager.

How do I fix CVE-2021-34639?

No fix has been published for CVE-2021-34639 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-34639 being exploited?

There is no known exploitation of CVE-2021-34639 in the wild and no public exploit code.

Sources

Also known as GHSA-w5w3-25g6-2m2x.

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