Questions tagged [reflected-xss]

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55 views

JQuery function inside Script Tag. How to execute XSS in such a scenario?

The value of currentPage: can be controlled by the user. All characters (like: " ' ( ) / ; : except < & > are injected without being sanitized. Is there any possible way to execute XSS in ...
0
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1answer
49 views

can you have reflective xss through a POST parameter?

While testing a dummy app, I noticed that the XSS done through POST parameters was getting stored in the form (the alert('XSS') would show every time I loaded the page where I had injected the payload)...
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0answers
32 views

how to bypass URL encoding on XSS [duplicate]

I typed following script on the search input on the website alert() but website converted this script into &lt;script&gt;alert()&lt;/script&gt; in HTML content, is there any ...
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2answers
114 views

Is acquiring the csrftoken alone sufficient for performing any security exploits?

I have confirmed the presence of reflected XSS vulnerability in my website and I see the csrftoken present in one of the cookies when injecting a document.cookie in javascript. We don't have the user-...
3
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0answers
100 views

Is it possible to exploit this cors?

I found an xss on subdomain.example.com and i verified that the domain api.example.com accepts subdomain.example.com as valid origin. Can i exploit this as cors by inserting a CORS script in subdomain....
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1answer
601 views

Bypassing htmlspecialchars() for XSS (Reflected) and using an event handler is not an option in this case

I am trying to bypass high security XSS on DVWA. So the vulnerable code(I highly doubt that is it really vulnerable?) is:- <?php if(!array_key_exists ("name", $_GET) || $_GET['name'] == NULL || $...
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0answers
91 views

Finding hidden parameters manually for XSS

I am researching about XSS and Google helped me a lot about learning like how to bypass XSS filters, POST and GET based XSS . I am really curious to know how to find hidden parameters manually for ...
0
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1answer
236 views

XSS triggered but chrome didn't show popup. What exactly was going on?

Related to my previous question on XSS in canonical link. At the beginning I turned off Chrome's XSS auditor and tried executing XSS with just onload event using following payload which did not ...
0
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1answer
44 views

Reflected XSS which only displays in the input [closed]

I am trying to execute an XSS in an HTTP GET request,but it just displays the input without running the script. I checked in BurpSuite and I see it added my input to referer: url and then my input. ...
0
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1answer
199 views

XSS vulnerability in display message

I have a webpage in which Email is given as input. It will then display "your email is abc@xyz.com". I am then changing the email in URL to <script>alert(1)</script> and send tbe request ...
1
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0answers
150 views

CSS Injection without colon

I'm looking for a way to create a CSS injection proof-of-concept. I can insert the following and it gets reflected in the browser: <style>body{background-color:red}</style> The only ...
2
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2answers
2k views

What are the common features to identify XSS attack from Apache log file?

I have tried some XSS vulnerability on web application such as webgoat, OWASP mutillidae, bWAPP. I want to know the features/keywords/footprints of cross site scripting attack in apache log file and ...
0
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1answer
2k views

Exploit: Send cookie to another server from url

I'm testing a web application and found that url contains "redirect=" where it navigates to new location once logged in. http://IPAddress/?redirect_uri=test I'm trying to exploit the cookie using ...
0
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1answer
235 views

Reflected XSS in multiline script block

I am trying to exploit a reflected cross site scripting in a GET request where the reflection is in the first multi line script block. It seems I can use every character but <, > and " and the ...
0
votes
1answer
947 views

How does OWASP ZAP find Reflected XSS?

What I'm doing: I'm using OWASP Zap to find vulnerabilities in a site (I have the owner's consent) and Zap came up with a Reflected XSS Vulnerability after I did an active scan on a POST request. It ...
3
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1answer
134 views

Why the following XSS vectors work without closing bracket?

The following XSS injections will execute without the accompanying closing tag (see this demo): <body/onload=alert(1) <svg/onload=alert(1) <iframe/onload=alert(1) I just need to know why ...
2
votes
1answer
253 views

Are unescaped backslashes dangerous in terms of XSS?

I thought the \ (backslash) character was a dangerous character that you needed to filter out/properly encode to protect against XSS attacks (OWASP says so, too), and I still do, but why? I found a ...
1
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0answers
1k views

How can I steal all cookies from reflected XSS?

I just found a website with a XSS vulnerability. When I visit the following URL, a pop up occurs: https://example.com/article/HALLOWEEN"><script>alert(1);</script> I have a ...
4
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3answers
1k views

Is this code vulnerable to Reflected XSS?

I'm doing a pentest and came by this code: (function() { var subdomain = (function() { var query = /[?&]css=([^&#]*)/i.exec(window.location.search); if(...
0
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2answers
170 views

XSS vulnerability through burp suite

I am getting a XSS vulnerability through burp suite but when I inject script manually I don't get the XSS vulnerability. Is this a reportable vulnerability?
3
votes
1answer
80 views

What are some ways to execute a reflected XSS attach

I was wondering how many different methods exist for executing XSS attacks. In just about every demonstration I see, the attack is triggered in one of the below 3 ways: By entering the script into ...
-1
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1answer
240 views

Xss filtering of single quote [closed]

Any hint Here Bypass filtering of single quote http://leettime.net/xsslab1/stage--08.php
2
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2answers
8k views

XSS with URL encoding

If a website URL gets encoded then is the website still vulnerable to XSS or no? For example, if I try <script>alert(1)</script> and the site URL encodes my payload to %3Cscript%3Ealert(1)...
1
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2answers
948 views

Why is unsanitized output from ajax request bad?

I know what I just described is a reflected XSS vulnerability. What I can't figure out is why it is a vulnerability. Because the way I see it, a user can't be directed to the attacker's content ...
0
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1answer
1k views

What is the XSS auditor in Chrome/Firefox and how do I find bypasses?

I've been doing a lot of bug bounties lately and although I've been gaining reputation and experience, I never seem to find XSS even in private programs. Items are always being reflected as HTML. It ...
-1
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1answer
601 views

Bypass this unique XSS filter?

I found a website that reflected back the user inputs. But the problem is when I inject this payload <svg/onload=alert(1)> I get an error. But when I use this payload <%20svg/onload=alert(1)&...
2
votes
1answer
259 views

Why does Chromes XSS filter block injection into HTML element, but not into attribute?

I have this vulnerable code which takes a GET parameter, and puts it inside a HTML element (h1) as well as inside a HTML attribute (data-text): $data = $_GET["payload"]; echo "<h1>" .$data. "&...
1
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1answer
1k views

How to bypass response Location in order to obtain content XSS?

In some basic steps: POST Request containing a photo with multipart/form-data. HTTP/1.1 302 Found respond with redirect back to formular Redirect to initial formular. In case 1 we are able to ...
-2
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1answer
292 views

How to ensure the third party CDN is secure (and stays secure)?

Most of the modern applications are using CDN for third party libraries. For example, let's say I use xxxv2.min.js from cdn.example.com/xxxv2.min.js Everything is good, until the day that company has ...
3
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1answer
4k views

XSS in textarea when < and > are not allowed?

I am trying to perform XSS on the injection point marked with XXXX here: <textarea name="billing[something]" id="billing-something" rows="1" type="phone" title="something" placeholder="something" ...
-4
votes
1answer
867 views

How to bypass server side XSS filter for characters like < > / * [duplicate]

i was trying to exploit a website using XSS, but whenever I try an injection containing <, >, / or * I get the following message: I think website is trying to protect against XSS commands using ...
1
vote
1answer
6k views

Bypassing <, > XSS filter

<img class="avatar" src="MY INPUT SPACE"> I am trying to bypass an XSS filter but it is not working since given <, > are filtered. I feel like it I could break it since only these two ...
11
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1answer
419 views

How to report a vulnerability in a site that wants to call the FBI?

I was browsing a site recently that looked like it had been designed in 2000. However, this site has a good Alexa rank and a fairly active online community. For the protection of the site, I will not ...
0
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0answers
260 views

xsser fails to find easy XSS vulnerability (Web For Pentester)

I tried to evaluate the effectivity of xsser (http://xsser.03c8.net) by letting it run against the "Web For Pentester" XSS tests (https://pentesterlab.com/exercises/web_for_pentester/course) is it ...
2
votes
2answers
966 views

Reflected XSS only works through Burp Repeater because of URL encoding

I am able to get reflected XSS through burp repeater using a GET request. I then click on show response in browser and I am able to get an XSS alert. But when I manually go to the URL in my browser ...
4
votes
1answer
4k views

Bypassing browsers URL encoding to do reflected XSS from query parameter?

I tried to get reflected XSS in vulnerable website with a request to the following URL: https://vulnerable.website/dir/dir?param1=test"><svg/onload=alert(1)> The browser URL encode the ...
-1
votes
2answers
157 views

XSS vulnerabillity in response

I'm checking for reflective XSS in a website and have noticed that the website uses the concept of HTML escaping, so basically any special/invalid characters are escaped. So injecting is not that easy....
0
votes
1answer
3k views

How to exploit XSS in POST request when parameter is going in body?

As per my understanding, while exploiting an XSS (in GET request) the attacker will craft the malicious link with a JS payload and will send it to the victim. When the victim clicks on the link the ...
4
votes
1answer
4k views

How to perform XSS in hidden HTML input fields using accesskey?

I am trying to insert a XSS payload into a hidden HTML input field. I know it works with a script tag like below, but I am looking for other alternatives. <input type="hidden" name="date" value=""/...
2
votes
1answer
4k views

XSS - double quote and backslash escaping

I'm currently testing my own XSS filter and don't know if I thought everything through, so I need some advice. Let's say my code looks like this: <script> var test = {src: "test", layer: {"...
0
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2answers
10k views

Reverse shell using XSS [closed]

If a certain web application is vastly vulnerable to XSS attacks, is it possible for the attacker to gain a reverse shell using an certain XSS payload without uploading any mallicous files to the web ...
2
votes
1answer
1k views

Impact of the response content-type on the exploitability of XSS

I've come across an API of a web application I'm testing, which reflects with unescaped, unencoded, user-controlled data for some requests. However, the response includes the header Content-Type: ...
6
votes
2answers
4k views

XSS inside anchor tag (<a>) without user interaction?

Is it possible to inject a payload inside <a> tag such that the script runs without user interaction? The injection is inside the href attribute. I can inject onmouseover or onclick attributes, ...
0
votes
1answer
422 views

JS bug is stopping xss payload to exeute

The XSS vector is at the * but the function issue_type is not declared hence my payload is not getting executed. following is the instance of the vulnerable code:- <select name="sub_subissues" ...
1
vote
2answers
371 views

Is all reflected XSS bad?

I stumbled on a site today that was vulnerable to XSS. I was able to get an alert box to display via an input box and some JavaScript. I was about to report this to the site owner, but I realized ...
33
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8answers
7k views

Is reflected XSS still relevant today?

I've been learning more about XSS (for the unfamiliar, Excess XSS is a great resource). I opted to get my hands dirty and give Reflected XSS a try on a local environment. I set up a very simple ...
0
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2answers
2k views

Why is an XSS payload in the address bar executed?

I was playing with OWASP Mutillidae II and in one page I've found a vulnerability. In the address bar I've wrote something like this: 127.0.0.1/.../?page=text-file-viewer.php/"><script>...