Description
WordPress is prone to an SQL injection vulnerability because the application fails to properly sanitize user-supplied input before using it in an SQL query. A successful exploit could allow an attacker to compromise the application, access or modify data, or exploit vulnerabilities in the underlying database implementation. WordPress version 2.1.3 is vulnerable; other versions may also be affected.
Remediation
Update to WordPress version 2.2 or latest
References
http://www.waraxe.us/advisory-50.html
http://www.exploit-db.com/exploits/3960/
http://packetstormsecurity.org/files/view/56875/wp213-ajax.txt
Related Vulnerabilities
WordPress Plugin Archivist-Custom Archive Templates Multiple Vulnerabilities (1.7.4)
PHP Other Vulnerability (CVE-2007-1380)
WordPress Plugin Mang Board WP Unspecified Vulnerability (2.0.5)
Oracle JRE CVE-2013-5777 Vulnerability (CVE-2013-5777)
WordPress Plugin Advanced Custom Fields (ACF) Cross-Site Scripting (5.8.11)