12 Jan

Vulnerability Details: Persistent Cross-Site Scripting (XSS) Vulnerability in Chained Quiz

From time to time vulnerabilities are fixed in plugin without someone putting out a report on the vulnerability and we will put out a post detailing the vulnerability. While putting out the details of the vulnerability increases the chances of it being exploited, it also can help to identify vulnerabilities that haven’t been fully fixed (in some cases not fixed at all) and help to identify additional vulnerabilities in ...


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2 thoughts on “Vulnerability Details: Persistent Cross-Site Scripting (XSS) Vulnerability in Chained Quiz

  1. “Any available cookies will be shown in alert box on that page.”

    This is simply not true. The HTML is shown as HTML on the page because it is escaped. The plugin MUST allow all kind of input from users because it can be used to examine HTML knowledge.

    • Prior to what you are quoting we noted the vulnerability was fixed by escaping the output. The proof of concept you are quoting shows how the vulnerability would be exploited in prior versions, before the escaping was done, so that seems to be what is confusing you about this.

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