CVE-2008-1930 Auth bypass in n/a

High 7.5 Published 28 Apr 2008 Updated 7 Aug 2024

Remote attackers can forge authentication cookies by registering specific usernames to bypass authentication and gain administrator privileges.

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-2008-1930?

CVE-2008-1930 is a high-severity authentication bypass vulnerability in Wordpress Wordpress, published on 28 Apr 2008. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The cookie authentication method in WordPress 2.5 relies on a hash of a concatenated string containing USERNAME and EXPIRY_TIME, which allows remote attackers to forge cookies by registering a username that results in the same concatenated string, as demonstrated by registering usernames beginning with "admin" to obtain administrator privileges, aka a "cryptographic splicing" issue. NOTE: this vulnerability exists because of an incomplete fix for CVE-2007-6013.

Weakness: CWE-287

Which versions are affected by CVE-2008-1930?

It affects 1 product.

Products include Wordpress Wordpress.

How do I fix CVE-2008-1930?

Upgrade to a fixed version.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2008-1930 being exploited?

There is no known exploitation of CVE-2008-1930 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

All Wordpress Wordpress vulnerabilities

Sources

Also known as DEBIAN-CVE-2008-1930, GHSA-m86r-5c2c-w6rq.