Yahoo! Messenger ymsgr URI Arbitrary Script Execution
High Nessus Network Monitor Plugin ID 1262
SynopsisThe remote host is vulnerable to a script injection flaw
DescriptionThe remote host is running a version of Yahoo Instant Messenger that is vulnerable to a script injection attack. It is possible to create a URL that contains the ymsgr:addview? function and which points to a webpage containing malicious code. This code will be automatically loaded and rendered by the Yahoo Client allowing for the execution of attacker supplied code that will run with the privileges of the IM client user.
SolutionUpgrade to the latest version of Yahoo Instant Messenger.