STG Security Advisory: [SSA-20041122-12] Zwiki XSS vulnerability

["SSR Team" <advisory () stgsecurity com>]

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STG Security Advisory: [SSA-20041122-12] Zwiki XSS vulnerability

Revision 1.1
Date Published: 2004-11-22 (KST)
Last Update: 2004-11-22
Disclosed by SSR Team (advisory () stgsecurity com)

Summary
========
Zwiki is a wiki clone in zope. It has a cross site scripting vulnerability.

Vulnerability Class
===================
Implementation Error: Input validation flaw

Details
=======
Due to an input validation flaw, the Zwiki is vulnerable to cross site
scripting attacks.

cf. http://zwiki.org/925ZwikiXSSVulnerability

proof of concept
http://[victim]/<img src=javascript:alert('hi')>

Impact
======
Medium: Malicious attackers can inject and execute arbitrary script code in
a user's browser session in context of an affected site.

Workaround
==========
There is no known workaround at this time.

Affected Products
================
Zwiki 0.36.2 and prior

Vendor Status: NOT FIXED
=======================
2004-10-01 Vulnerability found.
2004-10-01 Zwiki developer notified.
2004-11-22 Official release.

Credits
======
Jeremy Bae at STG Security

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