Sunday, March 22, 2009

IncrediMail 5.86 Script Execution Vulnerability

Discovered by Bui Quang Minh

The most of popular Mail Client now exclude Script Code for mail content. It aims to avoid the type of XSS exploitation (For e.g: stolen cookie).

IncrediMail also remove Script Code when the user read mail. However, I found the "Reply" and "Forward" function of the mail client has not handled mail content well resulting in XSS vulnerability.

Of course, this leads to a lot of risk to users as lost sensitive information, cookies, ...

I reported to the manufacturer!

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