Published:2007/05/18  Last Updated:2008/05/21

Advance-Flow cross-site scripting vulnerability


Advance-Flow is an electronic authorization system. Advance-Flow contains a cross-site scripting vulnerability in its application form.

Products Affected

  • Advance-Flow Ver 4.41 and earlier
  • Advance-Flow Forms Ver 4.41 and earlier


Advance-Flow provided by OSK Co. LTD contains a cross-site scripting vulnerability, as it does not properly handle output data. Some application forms are not affected by this vulnerability and some are, depending on the contents of the application forms.


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


Update the Software
Apply the updates provided by the vendor.

Fixed versions:

  • Advance-Flow Ver 4.42 or later
  • Advance-Flow Forms Ver 4.42 or later

Vendor Status

Vendor Status Last Update Vendor Notes
OSK Co., LTD. Vulnerable 2007/05/18


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2007.05.18

Measures Conditions Severity
Access Required Routed - can be attacked over the Internet using packets
  • High
Authentication Standard - login caused to be created by an administrator
  • Low-Medium
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


Yoshinori Ohta of Business Architects Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the vendors under Information Security Early Warning Partnership.

Other Information

JPCERT Reports JPCERT-WR-2007-1901
CERT Advisory
CPNI Advisory
JVN iPedia JVNDB-2007-000400

Update History