xss alert

This article mainly introduces ThinkPHP2.x's defense against XSS cross-site attacks. The example analyzes ThinkPHP2.x's defense techniques against XSS cross-site attacks, which has some reference value, for more information about how ThinkPHP2.x defends against XSS attacks, see the examples in this article. Share it with you for your reference. The details are as

The SQL injection event is already the most troublesome attack method in the last century. The HTML injection vulnerability has emerged in the 21st century. With the rapid development of the web, the XSS vulnerability cannot be ignored, A Brief Introduction to the XSS vulnerability is caused by an XSS vulnerability where the user inputs it. For example, when post

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During front-end WEB development, many developers often leave XSS vulnerabilities due to a large number of URLs and multiple transmission parameters. Once a vulnerability is detected in the security test, defect must be enabled for the developer. Defect has a very high priority and must be resolved immediately. Developers often use tricky methods to quickly block current vulnerabilities. As a result, this vulnerability is often blocked, and the vulner

, we can also use VBScript, although it is disabled in IE11, but can still run on older versions of IE or enable compatibility mode IE11. We can insert VBScript code in a way similar to the above JavaScript:CSS ImportIE supports extending JavaScript in CSS, a technique called dynamic properties. It is quite dangerous to allow an attacker to load an external CSS stylesheet, because the attacker can now execute the JavaScript code in the original page.MALICIOUS.CSS:Body {color:expression ('

The so-called XSS scenario is triggered by the XSS place, in most cases the attacker is embedded in the Web page (the problem) of the malicious script (cross site Scripting), where the attack always triggers the browser-side, the attacker's purpose. Generally is to obtain the user's cookie (can restore the account login status), navigate to the malicious URL, carry a Trojan horse, as a broiler launch cc att

Web security, starting from the front, summarizes several technologies for Web front-end security:1,xssthe full name of the XSS is Cross site Scripting, which means that the principle of XSS is to inject scripts into HTML, which specifies script tagsXSS attacks are divided into two categories, one is from internal attacks, mainly refers to the use of the program's own vulnerabilities, the construction of cr

))! = NULL ){VaR XMLHTTP = new XMLHTTP ();If (XMLHTTP. INIT ()){XMLHTTP. Get (M [1] + "'", function (S1 ){If (S1! = NULL ){Alert (S1 );Sendurl (S1 );}});}// Alert (M [1]);} });}This is simply adding a 'test after the connection. 3. the attack code is missing.The code above is very rough. If you want to complete it, you still need to do a lot of work. Six Intranet:Many Intranet web pages cannot be accessed

Simple exploration of XssIn the previous content, I introduced some basic XSS cross-site scripting concepts. I believe that you have some knowledge of cross-site scripting. Next, we will describe how to discover some simple XSS vulnerabilities.The example below may be relatively simple. To learn more about exploring and testing XSS technologies, please follow the

, because this server did not filter the information before the display device IMEI. This looks like a stored XSS vulnerability. This vulnerability also seems interesting because it limits the IMEI segment to 15 characters. This restriction does not seem to allow injection of a JavaScript script? However, from the attacker's point of view, some js payload and annotation information can also be sent as multiple connection requests. This is very dangero

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