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csrf_cookie vulnerable to XSS (reflected)
#1

[eluser]tmountain[/eluser]
Running an automated security scanner on my CI application produces the following.

The value of the csrf_cookie cookie is copied into the value of an HTML tag attribute which is encapsulated in double quotation marks. The payload a38fc">[removed]alert(1)< /script>ede65226261 was submitted in the csrf_cookie cookie. This input was echoed unmodified in the application's response.

It seems that the csrf_cookie that CI automatically adds to the form is vulnerable to XSS. I'm running CI version 2.1.0.
#2

[eluser]Narf[/eluser]
https://github.com/EllisLab/CodeIgniter/pull/1366
#3

[eluser]WanWizard[/eluser]
Which scanner are you using?
#4

[eluser]tmountain[/eluser]
Using the BURP Suite from Portswigger.




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