Maxthon3 versions prior to 3.3 are vulnerable to cross context scripting (XCS) via the about:history page. The browser’s trusted zone improperly handles injected script content, allowing attackers to execute arbitrary JavaScript in a privileged context. This flaw enables modification of browser configuration and execution of arbitrary code through Maxthon’s exposed DOM APIs, including maxthon.program.Program.launch() and maxthon.io.writeDataURL(). Exploitation requires user interaction, typically by visiting a malicious webpage that triggers the injection.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
| Link | Tags |
|---|---|
| https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/browser/maxthon_history_xcs.rb | exploit |
| https://www.exploit-db.com/exploits/23225 | exploit |
| http://blog.malerisch.net/2012/12/maxthon-cross-context-scripting-xcs-about-history-rce.html | exploit technical description |
| https://www.maxthon.com/ | product |
| https://www.fortiguard.com/encyclopedia/ips/34203 | third party advisory |
| https://www.vulncheck.com/advisories/maxthon3-xcs-trusted-zone-code-exec | third party advisory |