Multiple cross-site scripting (XSS) vulnerabilities in SquirrelMail before 1.4.18 and NaSMail before 1.7 allow remote attackers to inject arbitrary web script or HTML via vectors involving (1) certain encrypted strings in e-mail headers, related to contrib/decrypt_headers.php; (2) PHP_SELF; and (3) the query string (aka QUERY_STRING).
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg00577.html
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg00572.html
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg00566.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11624
https://gna.org/forum/forum.php?forum_id=2146
https://exchange.xforce.ibmcloud.com/vulnerabilities/50460
https://exchange.xforce.ibmcloud.com/vulnerabilities/50459
https://bugzilla.redhat.com/show_bug.cgi?id=500363
http://www.vupen.com/english/advisories/2010/1481
http://www.vupen.com/english/advisories/2009/3315
http://www.vupen.com/english/advisories/2009/1296
http://www.squirrelmail.org/security/issue/2009-05-09
http://www.squirrelmail.org/security/issue/2009-05-08
http://www.securityfocus.com/bid/34916
http://www.redhat.com/support/errata/RHSA-2009-1066.html
http://www.debian.org/security/2009/dsa-1802
http://support.apple.com/kb/HT4188
http://squirrelmail.svn.sourceforge.net/viewvc/squirrelmail?view=rev&revision=13672
http://squirrelmail.svn.sourceforge.net/viewvc/squirrelmail?view=rev&revision=13670
http://secunia.com/advisories/40220
http://secunia.com/advisories/37415
http://secunia.com/advisories/35259
http://secunia.com/advisories/35140
http://secunia.com/advisories/35073
http://secunia.com/advisories/35052
http://lists.apple.com/archives/security-announce/2010//Jun/msg00001.html