Input passed via the URL is not properly sanitised before being returned to the user within the search.php, sendmessage.php, showgroups.php, usercp.php, online.php, misc.php, memberlist.php, member.php, index.php, forumdisplay.php, inlinemod.php, newthread.php, private.php, profile.php, register.php, showthread.php, subscription.php, forum.php, faq.php, and calendar.php script. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site. The vulnerabilities are reported in version 4.0.2. Other versions may also be affected.
This module exploits insecure randomness vulnerability in Typo3, which leads to XSS attacks. This module tries to guess the Typo3 encryptionKey by exploiting its insecure randomness. If guessed, it will install an XSS Agent.Thanks to Chris John Riley for the info about the bug. http://www.c22.cc/TYPO3-InsecureRandomness.txt
There is a reflected Cross-Site Scripting attack. An attacker able to cause a user to follow a specially crafted malicious link may be able to recover session identifiers or exploit browser vulnerabilities. The orderby parameter is vulnerable to cross-site scripting.
Some parameters were not being properly cleaned on the blog index page, allowing non-persistent cross-site scripting (XSS) attacks. Affects Moodle branch 1.9.x from 1.9.8 and prior and branch 1.8.x from 1.8.13 and prior. This bug exists in the previous and next links on a paginated blog.