cross site scripting prevention

This article is a translated version of the XSS defense Checklist Https://www.owasp.org/index.php/XSS_%28Cross_Site_Scripting%29_Prevention_Cheat_SheetIntroductionThis article describes a simple positive pattern that properly uses output transcoding or escaping (encoding or escaping) to defend against XSS attacks.Despite the huge amount of XSS attacks, following some simple rules can completely prevent this kind of serious attack.This article does not discuss the commercial and technical impact

The so-called Cross-Site Vulnerabilities What about it? In fact, this is a hot topic SQL Injection The principle is similar because Program When writing a program, the user does not fully filter some variables, or directly sends the data submitted by the user to the SQL statement for execution without any filtering, as a result, some specially constructed statements submitted by the user generally contai

I. XSS Trojan attack simulation the following uses the dynamic network DVBBS Forum as an example to simulate detailed operations by attackers:Step 1: Download the source code of the dynamic network DVBBS Forum from the Internet and configure it in IIS. Then open index. asp on the homepage of the Forum ",. Register a low-Permission user, enter a forum, click the "initiate vote" button on the page, and post a vote ,.Step 2: Add a vote item on the "initiate a vote" page, and add the classic

website page of his own, such as using it to record sensitive information, "hanging horses" on the page, and so on. Therefore, in the execution of the script code of the page, as long as we strictly restrict its access to the URL, such as only allow script code access to the URL of the site, and so on, you can avoid the execution of the script link to other may be the attacker specified page.5. User PrecautionsAs an ordinary network user, the

Cross-site Scripting is a common security issue during development. This occurs when users are allowed to directly input HTML and JavaScript scripts. In the following website, we did not filter the input content, leading to some security vulnerabilities. If you enter the content surrounded by and save it, the alert window is displayed every time you browse this

Label:Introduces several front-end security attack methods, as well as the prevention method:1. XSSXSS (Cross site Scripting), the principle of XSS is to inject script into HTML, HTML specifies script tag. XSS attacks fall into two categories 1. Attacks from within, mainly refers to the use of the program's own vulnera

and methods of prevention. What is NBSP;XSS? Its full name is: Cross-site scripting, in order to distinguish with CSS cascading style sheets, so name XSS. is a Web application security vulnerability attack, is a code injection. It allows malicious users to inject code into a Web page, and other users will be affected

We often say that network security should actually include the following three aspects of security: 1. confidentiality, such as user privacy theft and account theft. The common method is Trojan. 2. Integrity, for example, data integrity. For example, Kangxi sent a 14th son, which was tampered with by the fourth brother at that time, common methods are XSS cross-site scr