Published:2011/01/07  Last Updated:2011/01/07

SquirrelMail vulnerable to cross-site request forgery


SquirrelMail contains a cross-site request forgery vulnerability.

Products Affected

  • SquirrelMail 1.4.19 and earlier


SquirrelMail from SquirrelMail Project is an open source webmail (web-based email).
SquirrelMail contains an issue in processing of sending a message or setting changes, which may result in cross-site request forgery.


A remote attacker may send an arbitrary email or change the settings.


Update the Software
Update to the latest version of SquirrelMail according to the information provided by the developer.

The issue was resolved in SquirrelMail 1.4.20.

Vendor Status

Vendor Link
SquirrelMail Project Security -- CSRF in all forms
SquirrelMail Downloads


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2011.01.07

Measures Conditions Severity
Access Required can be attacked over the Internet using packets
  • High
Authentication anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required the user must be convinced to take a standard action that does not feel harmful to most users, such as click on a link or view a file
  • Mid
Exploit Complexity the user must be convinced to take a difficult or suspicious action. If the honest user must have elevated privileges, they are likely to be more suspiciouse
  • High

Description of each analysis measures


Daiki Fukumori reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2009-2964
JVN iPedia JVNDB-2009-002207