advisory@xxxxxxxxxxxxxxx wrote:
proof of concept
http://[victim]/<img src=javascript:alert('hi')>
Just to note, this bug only affects ZWiki version after Zwiki 0.10.0rc1.
Also, the fix is pretty trivial, apply the following patch to standard_error_message in all ZWiki folders (and on disk, so you don't have to do it again ;-):
--- standard_error_message.dtml.original Fri Nov 26 09:17:22 2004
+++ standard_error_message.dtml Fri Nov 26 09:17:55 2004
@@ -29,7 +29,7 @@
<body>
<p>
I could not find any likely page matching
- "<b><dtml-var "here.urlunquote(searchexpr)"></b>"
+ "<b><dtml-var "here.urlunquote(searchexpr)" html_quote></b>"
</p>
<p>
Click here toSadly, I see I broke the bug tracker, 'cos it's also a ZWiki, and has MUCH bigger problems than the above :-S (execution of any DTML in the context of (hopefully!) the user that created it along with a total lack of html quoting in the page :-(
In short, only use ZWiki if you know what you're doing, and preferably only if it's not anonymously accessible...
*sigh*
Chris
--
Simplistix - Content Management, Zope & Python Consulting
- http://www.simplistix.co.uk
