JVN#21312708 MTCMS WYSIWYG Editor cross-site scripting vulnerability

Overview

MTCMS WYSIWYG Editor, weblog management software from SKYARC System, contains a cross-site scripting vulnerability.

Products Affected

All versions of MTCMS WYSIWYG Editor

Description

MTCMS WYSIWYG Editor from SKYARC System is management software used to update Movable Type contents, etc. The install.cgi in MTCMS WYSIWYG Editor contains a cross-site scripting vulnerability.

Impact

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

Solution

Workarounds
The vendor provides a workaround for this issue. For more information, refer to the vendor's website.

Vendor Status

Vendor	Status	Last Update	Vendor Notes
SKYARC System Co., Ltd,	Vulnerable	2008/03/07

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2008.03.07

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

Credit

Taketo Ikeuchi reported this vulnerability to IPA.
JPCERT/CC coordinated with the vendors under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE
JVN iPedia	JVNDB-2008-000003