CVE-2008-4106

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CVE-2008-4106

Published: 18 Sept 2008Last Modified: 10 Apr 2026

Summary:

Details: WordPress before 2.6.2 does not properly handle MySQL warnings about insertion of username strings that exceed the maximum column width of the user_login column, and does not properly handle space characters when comparing usernames, which allows remote attackers to change an arbitrary user's password to a random value by registering a similar username and then requesting a password reset, related to a "SQL column truncation vulnerability." NOTE: the attacker can discover the random password by also exploiting CVE-2008-4107.

References: http://secunia.com/advisories/31737, http://secunia.com/advisories/31870, http://www.debian.org/security/2009/dsa-1871, http://www.sektioneins.de/advisories/SE-2008-05.txt, http://www.vupen.com/english/advisories/2008/2553, http://wordpress.org/development/2008/09/wordpress-262/, http://marc.info/?l=oss-security&m=122152830017099&w=2, http://securityreason.com/securityalert/4272, http://securitytracker.com/id?1020869, http://www.openwall.com/lists/oss-security/2008/09/11/6, http://www.securityfocus.com/archive/1/496287/100/0/threaded, http://www.securityfocus.com/bid/31068, http://www.suspekt.org/2008/08/18/mysql-and-sql-column-truncation-vulnerabilities/, https://www.exploit-db.com/exploits/6397, https://www.exploit-db.com/exploits/6421, https://www.redhat.com/archives/fedora-package-announce/2008-September/msg00607.html, https://www.redhat.com/archives/fedora-package-announce/2008-September/msg00629.html

Affected packages

Common Vulnerability Scoring System

Attack Vector

Network

Adjacent

Local

Physical

Privileges Required

None

Low

High

User Interaction

None

Required

Scope

Unchanged

Changed

Confidentiality

None

Low

High

Integrity

None

Low

High

Availability

None

Low

High