CVE-2010-4555
Multiple cross-site scripting (XSS) vulnerabilities in SquirrelMail 1.4.21 and earlier allow remote attackers to inject arbitrary web script or HTML via vectors involving (1) drop-down selection lists, (2) the > (greater than) character in the SquirrelSpell spellchecking plugin, and (3) errors associated with the Index Order (aka options_order) page.
Date published : 2011-07-14
http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html
http://squirrelmail.svn.sourceforge.net/viewvc/squirrelmail?view=revision&revision=14119