how to find xss cross site scripting vulnerability in website xss scripting
Today we will discuss how to find Cross site
scripting XSS in common website. As I am security Researcher I have found many
Cross site scripting XSS Vulnerabilities in website. So cross site scripting
XSS is find not a difficult task but if you are newbie so May you have face
some problems to Find xss scripting in starting .
But if you read my previous article
that what is cross site scripting XSS and its types then you just have idea
about how to find Cross site scripting XSS. and I have also share a tutorial
how to find vulnerable website so now then you have to able to find cross site
scripting . So let’s start
First of all you have to find the input filed
like search bar, Login page, subscribe by email and Contact us page. If you
find input then we can inject over payload in the input field.
The question is that what is Payload or vector?
Payload or vector is a JavaScript code which
we can insert in input field to find XSS scriptin.
So here I have taken a one example of vulnerable website
I have searched my news on website and I am
searching a news for nomanramzan but as you seen in below picture no news found
on nomanramzan and after that you just right click on the anywhere of website
and click on View page source
Then press CTRL + F for search nomanramzan and
Note the location where the input is
placed. as you seen in below
picture website taken an input and search value for nomanramzan . so now the
important step is that we have put out nomanramzan from “ ”
Now I am going to check whether the
server sanitize the input or not . If I am giving the input this <>
in input field . Sometime server sanitized the code and then code look like this
<>.
So now in this condition website
server not sanitize our input and this indicate that the website is vulnerable
to XSS Now finally I have put
a Payload
"><img src=x onerror=prompt(1);>
In the search bar then you have seen below picture.
Now it will display pop-up box. So finally we have successfully find a cross
site scripting XSS
Then again right click on website and then
press CTRL + F for search
for the payload "><img src=x
onerror=prompt(1);> or value and finally you have checked that over payload
put out from “” .
Finally we have find a cross site scripting XSS vulnerability . Hopefully
you enjoyed this tutorial. If you have any problem so you can comment below
9 comments:
nice one bro,, keep sharing for people like me who are new in security :)
Regards
Greate work Dear. amzignly superb :)
Nice post
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i cnt under stand how to check server sanitation :(
Nice post! Glad that you like their service. I believe that treating the customer so politely makes them so comfortable with your services. Anyway, thanks for sharing. Keep posting.
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