Cross-site scripting (XSS) vulnerability in search.php in SquirrelMail 1.5.1 and earlier, when register_globals is enabled, allows remote attackers to inject arbitrary HTML via the mailbox parameter.
docs.info.apple.com/article.html?artnum=306172
lists.apple.com/archives/security-announce//2007/Jul/msg00004.html
pridels0.blogspot.com/2006/06/squirrelmail-151-xss-vuln.html
secunia.com/advisories/26235
www.mandriva.com/security/advisories?name=MDKSA-2006:147
www.osvdb.org/26610
www.securityfocus.com/bid/18700
www.securityfocus.com/bid/25159
www.vupen.com/english/advisories/2007/2732
exchange.xforce.ibmcloud.com/vulnerabilities/26941