Published:2011/12/26  Last Updated:2012/03/14

Movable Type Plugin MailForm vulnerable to cross-site scripting


MailForm contains a cross-site scripting vulnerability.

Products Affected

  • MailForm prior to V1.20


MailForm is a plugin for Movable Type. MailForm contains a cross-site scripting vulnerability.


An arbitrary script may be executed on the user's web browser.


Update the Software
Update to the fixed version according to the information provided by the developer.

Vendor Status

Vendor Link
H.Fujimoto MailForm V1.20 (Japanese only)


JPCERT/CC Addendum

This JVN publication was delayed to 2011/12/26 after the developer fix was developed. From the fiscal year 2011, JPCERT/CC is using a new vendor coordination procedure. This new procedure came from the recommendation of the fiscal year 2010 "Study Group on Information System Vulnerability Handling" aimed at more timely JVN publications.

Vulnerability Analysis by JPCERT/CC

Analyzed on 2011.12.26

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 of Cyber Defense Institute, Inc. 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-2007-6751
JVN iPedia JVNDB-2011-000108

Update History

Information under the section "Other Information" was updated.