JVN#03300113 Blosxom vulnerable to cross-site scripting

Overview

Blosxom, a weblog system contains a cross-site scripting vulnerability.

Products Affected

Blosxom 2.1.1 and earlier

Description

Blosxom is an open source weblog system. Blosxom contains a cross-site scripting vulnerability.

Impact

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

Solution

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

Vendor Status

Vendor	Link
Bloxsom	Blosxom 2.1.2 release
	Email Archive: blosxom-users (read-only)
	blosxom :: the zen of blogging

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2008.10.20

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

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

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE	CVE-2008-2236
JVN iPedia	JVNDB-2008-000073