The (1) rand and (2) mt_rand functions in PHP 5.2.6 do not produce cryptographically strong random numbers, which allows attackers to leverage exposures in products that rely on these functions for security-relevant functionality, as demonstrated by the password-reset functionality in Joomla! 1.5.x and WordPress before 2.6.2, a different vulnerability than CVE-2008-2107, CVE-2008-2108, and CVE-2008-4102.
https://www.redhat.com/archives/fedora-package-announce/2008-September/msg00629.html
https://www.redhat.com/archives/fedora-package-announce/2008-September/msg00607.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/45956
http://www.vupen.com/english/advisories/2008/2553
http://www.suspekt.org/2008/08/17/mt_srand-and-not-so-random-numbers/
http://www.sektioneins.de/advisories/SE-2008-05.txt
http://www.sektioneins.de/advisories/SE-2008-04.txt
http://www.sektioneins.de/advisories/SE-2008-02.txt
http://www.securityfocus.com/bid/31115
http://www.securityfocus.com/archive/1/496287/100/0/threaded
http://www.securityfocus.com/archive/1/496237/100/0/threaded
http://www.openwall.com/lists/oss-security/2008/09/11/6
http://wordpress.org/development/2008/09/wordpress-262/
http://securitytracker.com/id?1020869
http://securityreason.com/securityalert/4271
http://secunia.com/advisories/31870