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Squirrelmail: Another XSS vulnerability


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200406-08 / Squirrelmail
Release Date June 15, 2004
Latest Revision May 22, 2006: 02
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
mail-client/squirrelmail <= 1.4.3_rc1-r1 >= 1.4.3 All supported architectures

Related bugreports: #52434


Squirrelmail fails to properly sanitize user input, which could lead to a compromise of webmail accounts.

2.  Impact Information


SquirrelMail is a webmail package written in PHP. It supports IMAP and SMTP, and can optionally be installed with SQL support.


A new cross-site scripting (XSS) vulnerability in Squirrelmail-1.4.3_rc1 has been discovered. In functions/mime.php Squirrelmail fails to properly sanitize user input.


By enticing a user to read a specially crafted e-mail, an attacker can execute arbitrary scripts running in the context of the victim's browser. This could lead to a compromise of the user's webmail account, cookie theft, etc.

3.  Resolution Information


There is no known workaround at this time.


All SquirrelMail users should upgrade to the latest stable version:

Code Listing 3.1: Resolution

# emerge sync

# emerge -pv ">=mail-client/squirrelmail-1.4.3"
# emerge ">=mail-client/squirrelmail-1.4.3"

4.  References


Page updated June 15, 2004

Summary: This is a Gentoo Linux Security Advisory

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