* No extra code needed for jQuery 1 & 2 */$(document).off('foobar') Return (typeof wistiaEmbeds != 'undefined') The double quote is encoded, the challenge is to find a way to execute XSS within a quoted src attribute.
Injection occurs inside double quoted src attribute of a image element Luan Herrera solved this lab in an amazing way, you can view the solution in the following post.
The injection occurs within a single quoted string and the challenge is to execute arbitrary code using the charset a-zA-Z0-9'+.`. Injection occurs inside single quoted string, only characters a-z0-9+'.` are allowed. You would think you could inject a closing frameset followed by a script block but that would be too easy. It occurs within a frameset but before a body tag with equals filtered. We received a request from twitter about this next lab. Injection occurs inside a frameset but before the body It's all well and good executing JavaScript but if all you can do is call alert what use is that? In this lab we demonstrate the shortest possible way to execute arbitrary code.Īttribute context length limit arbitrary codeĪgain calling alert proves you can call a function but we created another lab to find the shortest possible attribute based injection with arbitrary JavaScript. Do you think you can beat it?īasic context length limit, arbitrary code We came up with a vector that executes JavaScript in 15 characters:"oncut=alert``+ the plus is a trailing space. The context of this lab inside an attribute with a length limitation of 14 characters. Filedescriptor came up with a vector that could execute JavaScript in 16 characters:
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