Published:2008/10/06  Last Updated:2008/10/06

Nucleus EUC-JP Japanese Edition vulnerable to cross-site scripting


Nucleus from The Nucleus Group contains a cross-site scripting vulnerability.

Products Affected

  • Nucleus v3.31 SP1 EUC-JP Japanese Edition and earlier
According to the developer, it is confirmed that this vulnerability exist in Nucleus EUC-JP only, and Nucleus UTF-8 Japanese Edition and Nucleus English Edition are not affected.
For more information, refer to the developer's website.


Nucleus is an open source content management system provided by The Nucleus Group. Nucleus EUC-JP Japanese Edition contains a cross-site scripting vulnerability.


An arbitrary script may be executed on the specific web browser.


Update the Software
Apply the latest update provided by the developer.

Vendor Status

Vendor Link
The Nucleus Group About the release of Nucleus v3.31 SP2 EUC-JP


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2008.10.06

Measures Conditions Severity
Access Required Routed - can be attacked over the Internet using packets
  • High
Authentication None - anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required Simple - 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
  • Medium
Exploit Complexity Low - little to no expertise and/or luck required to exploit (cross-site scripting)
  • High

Description of each analysis measures


Gaku Mochizuki of Mitsui Bussan Secure Directions, Ltd. 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-2008-4446
JVN iPedia JVNDB-2008-000066

Update History