SquirrelMail is a standards-based webmail package written in PHP4.
Several HTML filtering bugs were discovered in SquirrelMail. An attacker could inject arbitrary JavaScript leading to cross-site scripting attacks by sending an e-mail viewed by a user within SquirrelMail. (CVE-2007-1262)
Squirrelmail did not sufficiently check arguments to IMG tags in HTML e-mail messages. This could be exploited by an attacker by sending arbitrary e-mail messages on behalf of a squirrelmail user tricked into opening a maliciously crafted HTML e-mail message. (CVE-2007-2589)
Users of SquirrelMail should upgrade to this erratum package, which contains a backported patch to correct these issues.