xss Questions

2

Solved

I'd like to allow scripts only from my local server with certain exceptions like jQuery etc., but be flexible to load external images. I'm aware that there is a directive like Content-Security-Pol...
Giamo asked 3/3, 2016 at 15:17

3

Solved

Imagine a scenario where I want to continuously invoke user-supplied Javascript code, like in the following example, where getUserResult is a function that some user (not myself) has written: for ...
Battlement asked 19/3, 2014 at 12:35

3

Solved

I have some user input. Within my code, I ensure that the following symbols are escaped: & -> & < -> < > -> > OWASP states that there are more chars to...
Garlaand asked 18/1, 2012 at 11:50

7

Solved

I have tried to put this: <meta http-equiv="X-XSS-Protection" content="0"> in the <head> tag but have had no luck. I am trying to get rid of pesky IE preventing cross-site scirpting...
Weiner asked 8/1, 2011 at 18:20

7

Solved

I've found an article claiming that $_SERVER['PHP_SELF'] is vulnerable to XSS. I'm not sure if I have understood it correctly, but I'm almost sure that it's wrong. How can this be vulnerable to X...
Audy asked 21/5, 2011 at 6:21

8

Solved

I'm writing the JS for a chat application I'm working on in my free time, and I need to have HTML identifiers that change according to user submitted data. This is usually something conceptually sh...
Lindsey asked 8/5, 2010 at 12:59

11

Solved

After reading Jeff's blog post on Protecting Your Cookies: HttpOnly. I'd like to implement HttpOnly cookies in my web application. How do you tell tomcat to use http only cookies for sessions?
Dryad asked 28/8, 2008 at 21:9

9

Solved

<?php $x = array("<b>","<i>","b","i","<h1>hello</h1>"); print_r ($x); echo "<hr>"; var_dump ($x); out...
Ftc asked 7/4, 2012 at 16:14

3

Does the threat of XSS exists when loading an untrusted SVG file using the img tag? As in: <img src="untrusted.svg"/> I've read that most browsers disable scripts in svg files loaded via th...
Thurmond asked 27/10, 2011 at 14:0

2

I want to secure my spring boot app with XSS protection. I have Spring Boot application implemented with Spring Security. Additionally I have second application (frontend) working on different port...
Thadeus asked 3/8, 2021 at 10:6

5

Solved

In Java, we've got some code that takes a complex java object and serializes it to json. It then writes that json directly to the markup of a page, in a script tag, assigning it to a variable. // ...
Nadda asked 14/6, 2018 at 12:31

2

i use from Spring 4.2.6.RELEASE and backend is rest services. and now I can not have a filter for Prevent XSS my filter is: @Component @Order(1) public class XSSFilter implements Filter { @Over...
Fusibility asked 15/8, 2018 at 5:24

15

Solved

I read the tutorial DIY widgets - How to embed your site on another site for XSS Widgets by Dr. Nic. I'm looking for a way to pass parameters to the script tag. For example, to make the following w...
Photogram asked 13/3, 2011 at 21:5

6

Solved

We have enabled AWS WAF solution before my ALB and have SQL injection and XSS detection enabled. We have tried to setup a custom rule to check if the content-type is multipart\/form\-data* using re...
Maybellmaybelle asked 16/11, 2020 at 5:35

10

Solved

Any idea how one would go about preventing XSS attacks on a node.js app? Any libs out there that handle removing javascript in hrefs, onclick attributes,etc. from POSTed data? I don't want to have...
Mostly asked 14/9, 2010 at 0:26

5

Solved

I am learning about XSS (for ethical purposes), and I was wondering how to execute some JavaScript code without using <script> tags. This is within the HTML tag: "The search term" <p> ...
Adsorbate asked 25/5, 2016 at 10:58

2

I want to enable Spring Security XSS protection in my application. 1) Read docs and blogs, and https://spring.io/blog/2013/08/23/spring-security-3-2-0-rc1-highlights-security-headers/ indicates XS...
Tramway asked 3/6, 2016 at 4:56

6

Solved

Is there a known XSS or other attack that makes it past a $content = "some HTML code"; $content = strip_tags($content); echo $content; ? The manual has a warning: This function does no...
Robyn asked 26/4, 2011 at 9:40

5

Is it possible to configure the Content-Security-Policy to not block anything at all? I'm running a computer security class, and our web hacking project is running into issues on newer versions of ...
Freedafreedman asked 14/3, 2016 at 3:1

3

So I've been building a C# html sanitizer using html agility with a white list. It works fine, except for cases like these: <img src="javascript:alert('BadStuff');" /> <img src="jav&#...
Recur asked 7/3, 2013 at 20:54

5

Solved

From within the succcess method of my AJAX response, my goal is to do the following in an XSS safe manner: remove all existing options within a select box. replace the options from that same selec...
Em asked 14/2, 2023 at 18:14

7

I have a dynamically generated SVG string in a React component. I want to embed this as an image in the component. Currently, I'm using something along the lines of: class SomeComponent extends Re...
Turbofan asked 4/7, 2017 at 8:17

4

Solved

I am trying to figure out how to protect, Angular Vue React against XSS attacks. When I visit the Angular official docs, https://angular.io/guide/security , it says: To systematically bloc...
Fenella asked 20/3, 2019 at 13:47

6

I need to add custom headers in IIS for "Content-Security-Policy", "X-Content-Type-Options" and "X-XSS-Protection". I get the procedure to add these headers but i am not sure what should be the v...
Flotsam asked 23/6, 2016 at 12:53

4

I am just creating a registration form, and I am looking only to insert valid and safe emails into the database. Several sites (including w3schools) recommend running FILTER_SANITIZE_EMAIL before ...
Hix asked 3/9, 2011 at 1:52

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