CVE-2009-3890 File upload in n/a
Authenticated users can execute arbitrary code by uploading files with multiple extensions if Apache mod_mime is configured incorrectly.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2009-3890?
CVE-2009-3890 is a medium-severity vulnerability in Wordpress Wordpress, published on 17 Nov 2009. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Unrestricted file upload vulnerability in the wp_check_filetype function in wp-includes/functions.php in WordPress before 2.8.6, when a certain configuration of the mod_mime module in the Apache HTTP Server is enabled, allows remote authenticated users to execute arbitrary code by posting an attachment with a multiple-extension filename, and then accessing this attachment via a direct request to a wp-content/uploads/ pathname, as demonstrated by a .php.jpg filename.
Weakness: CWE-94
Which versions are affected by CVE-2009-3890?
It affects 1 product.
Products include Wordpress Wordpress.
How do I fix CVE-2009-3890?
Upgrade to a fixed version.
Is CVE-2009-3890 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-3890 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Wordpress Wordpress
Sources
Also known as DEBIAN-CVE-2009-3890, GHSA-fg69-73j6-crqr.