CVE-2012-4421 Missing authorization in n/a
Authenticated contributors can bypass access restrictions to publish posts via AtomPub due to missing capability checks in WordPress.
- 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-2012-4421?
CVE-2012-4421 is a medium-severity missing authorization vulnerability in Wordpress Wordpress, published on 14 Sep 2012. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The create_post function in wp-includes/class-wp-atom-server.php in WordPress before 3.4.2 does not perform a capability check, which allows remote authenticated users to bypass intended access restrictions and publish new posts by leveraging the Contributor role and using the Atom Publishing Protocol (aka AtomPub) feature.
Weakness: CWE-264
Which versions are affected by CVE-2012-4421?
It affects 1 product.
Products include Wordpress Wordpress.
How do I fix CVE-2012-4421?
Upgrade to a fixed version.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2012-4421 being exploited?
There is no known exploitation of CVE-2012-4421 in the wild and no public exploit code.
Other vulnerabilities in Wordpress Wordpress
Sources
Also known as DEBIAN-CVE-2012-4421, GHSA-v9p6-jxgm-w55j.