SquirrelMail: Encoded text XSS vulnerability
Gentoo Linux Security Advisory
||GLSA 200411-25 / SquirrelMail
||November 17, 2004
||May 22, 2006: 02
All supported architectures
Squirrelmail fails to properly sanitize user input, which could lead to a
compromise of webmail accounts.
SquirrelMail is a webmail package written in PHP. It supports IMAP and
SMTP, and can optionally be installed with SQL support.
SquirrelMail fails to properly sanitize certain strings when decoding
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.
There is no known workaround at this time.
All SquirrelMail users should upgrade to the latest version:
Code Listing 3.1: Resolution
# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-client/squirrelmail-1.4.3a-r2"
Note: Users with the vhosts USE flag set should manually use
webapp-config to finalize the update.