============================================================== Alt-N MDaemon Email Body HTML/JS Injection Vulnerability ============================================================== Software: Alt-N MDaemon v13.0.3 and prior versions Vendor: http://www.altn.com/ Vuln Type: HTML/JS Injection Remote: Yes Local: No Discovered by: QSecure and Demetris Papapetrou References: http://www.qsecure.com.cy/advisories/Alt-N_MDaemon_Email_Body_HTML_JS_Injection.html Discovered: 14/09/2012 Reported: 19/12/2012 Fixed: 15/01/2013 (http://files.altn.com/MDaemon/Release/RelNotes_en.html) Disclosed: 18/02/2013 VULNERABILITY DESCRIPTION: ========================== Alt-N MDaemon is prone to an HTML/Javascript injection vulnerability because it fails to sanitize user-supplied input. Attacker-supplied HTML and/or JavaScript code could run in the context of the affected site, potentially allowing the attacker to steal cookie-based authentication credentials and control how the site is rendered to the user; other attacks are also possible. Alt-N MDaemon v13.0.3 & v12.5.6 were tested and found vulnerable; other versions may also be affected. PoC Exploit: ============ <script>alert('XSS');</script>