There are several things I recommend doing as a developer to try and stop XSS from occurring:
That looks like a XSS pen testing injection to me.
XSS
I believe it is 27 by Medieval Roman numerologyImproved Answer:-In Roman numerals X = 10 and S = 1/2So XSS = 10+1/2+1/2 = 11
XSS Here's a sample attack: alert('Dear WikiAnswers User, you should visit my phishing site and enter all your personal information so that I can steal your identity and clean out your bank accounts. Or maybe I will just show you nasty pictures.'); On certain sites, entering this will cause a popup. WikiAnswers' software is protected from these XSS attacks.
# sxs xss
XSS is the acronym for Cross-Site Scripting, a technique used to exploit security vulnerabilities in websites. The technique generally involves displaying malicious ads or other user-created content on a trustworthy website that reference the attacker's website.
<!--[if gte IE 4]> <SCRIPT>alert('XSS');</SCRIPT> <![endif]-->
Offsite JavaScript is not allowed because of a vulnerability know as Cross-Site Script (XSS.) XSS happens when user input is improperly filtered, and <script> tags are allowed through to the user as source code. By inserting JavaScript into a site, an attacker can gain access to information given by that site's users. Furthermore, JavaScript can be used to either divert the user to a different page, or to convince the user that a file being downloaded is from a trusted source. See the related links for a complete explanation of XSS and how it is avoided by web programmers.
Cross-Site Scripting attack. (XSS)
Securing PHP web applications against common vulnerabilities is crucial for protecting sensitive data and maintaining user trust. Here are some best practices for securing PHP web applications against SQL injection, cross-site scripting (XSS), and cross-site request forgery (CSRF)
The setting of "Ode on a Grecian Urn" by John Keats is in a museum where the speaker observes and contemplates the scenes depicted on the ancient Greek urn. The urn portrays different mythological and pastoral scenes which inspire the speaker's reflections on the nature of art, beauty, and truth.
You can by-pass http only protection by using TRACE method. first check whether the web server supports TRACE method. Trace method usually echoes back what ever sent by client(browser). You can exploit this in clever manner by using xss in the payload