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XSS validator not working

Xavier | Last updated: Nov 01, 2015 05:16PM UTC

I am having some issues running the XSS validator on Burp (version 1.6.30). I can load the XSS validator, without any errors. The problem happens under Intruder, after I select the positions / payloads / selecting the generator, and so on. When I hit "Start attack", a window opens, but the attack does not start. It is as if the payloads are not loaded, or the XSS validator is not working. I was able to run phantomjs and slimerjs, and they are both listening on their respective ports. I updated Java to the latest version available. Once I unselect (or unload) the XSS validator from the Extender tab, I can launch any attack under Intruder, for example, with a typical "Simple list" payload, the attack works fine.

PortSwigger Agent | Last updated: Nov 02, 2015 10:02AM UTC

Thanks for this post. BApps are created by third parties and we're not able to provide support for issues with BApps, sorry.

Burp User | Last updated: Nov 07, 2015 02:16AM UTC

I noticed this as well but I got it working on Windows 7. Here's how: 1. Download Apache Ant: http://apache.mirrors.pair.com/ant/binaries/apache-ant-1.9.6-bin.zip 2. Download Apache HttpComponents Client libraries: http://mirror.olnevhost.net/pub/apache//httpcomponents/httpclient/binary/httpcomponents-client-4.5.1-bin.zip 3. Download the latest version of xssValidator from GitHub: https://github.com/nVisium/xssValidator 4. Within the xssValidator directory on your local PC, edit the "/burp-extender/bin/burp/build.xml" file and replace the hard coded version numbers with the latest in httpcomponents-client-4.5.1 (as of 11/6/15 it would be this) <path id="burp-extender.classpath"> <pathelement location="."/> <pathelement location="../../lib/commons-codec-1.9.jar"/> <pathelement location="../../lib/commons-logging-1.2.jar"/> <pathelement location="../../lib/fluent-hc-4.5.1.jar"/> <pathelement location="../../lib/httpclient-4.5.1.jar"/> <pathelement location="../../lib/httpclient-cache-4.5.1.jar"/> <pathelement location="../../lib/httpcore-4.4.3.jar"/> <pathelement location="../../lib/httpmime-4.5.1.jar"/> 5. Extract the httpcomponents-client-4.5.1-bin.zip and copy the /lib directory to /path/to/xssValidator/burp-extender/lib/ 6. Install Apache Ant http://www.mkyong.com/ant/how-to-install-apache-ant-on-windows/ 7. Finally go to the xssValidator/burp-extender/bin/burp directory and run type ant to start the build. When complete, a new xssvalidator.java file will be created in that directory. Just import that into Burp manually. 8. Download PhantomJS 2.0 https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-2.0.0-windows.zip 9. Run "phantomjs.exe C:\xssValidator\xss-detector\xss.js" 10. Follow the rest of the steps here http://thehackpot.blogspot.com/2014/05/eliminating-automated-xss-false.html Should be working now. There is a bug in the latest version with 302 redirects - the plugin doesn't know how to handle those correctly but it works great for straight fuzzing on a normal request! Good luck!

Burp User | Last updated: Oct 05, 2017 08:32PM UTC

Hello, I know there is no support for third party apps I have been using the jar file, so I can find xssValidator/burp-extender/bin/burp directory

Rajesh | Last updated: Nov 14, 2021 03:11AM UTC

I am trying xssvalidator extension with PhanthomJS in windows10 machine. After setting up, I run the below command in the windows prompt: phantomjs.exe xss.js It runs. When I try to open the browser & launch this URL, I get an error saying "This site can’t be reached" http://127.0.0.1:8093/ Since phantomJS Support isnt there anymore. Want to know if this extension holds good or am I missing something

Hannah, PortSwigger Agent | Last updated: Nov 17, 2021 01:14PM UTC