JavaScript Code Vulnerability Fix: Important Steps You Need to Know

Question

I'm not the strongest JS user, but I need it and wrote some code for my web page that works on Apache and PHP. In my ajax request I have the following code:

if (dataX['var1'] == '1.1' || dataX['var1'] == '2.1')
{
    window.location.href = '<domain>'
}

If I use XSStrike to check for potential vulnerabilities on my system, I get messages that may be injectable.

Can someone help me fix it? Do I need like a freeze or something to fix it? Sorry, I don't know how an attacker can use this. Thanks for any helpful help. good luck.

What have I tried? I tried asking on that channel? !

Answer 1

test. .

Answer 2

test. . .

Answer 3

If <domain> can contain arbitrary unchecked strings, then if an attacker has previously successfully saved any string they wanted as "domain", they will gain access to your page scope . In this case, it's highly questionable what they could do except redirect to their server, since the code in <domain> won't be executed due to the page change. I'm not sure about a location

window.location.href = '';executeSomethingNasty()

Or just change the hash

window.location.href = window.location.href+'#stayonthepage';executeSomethingNasty()

Answer 4

Such an answer