how to prevent xss attacks

We often say that the network security should include the following three aspects of security: 1, confidentiality, such as the user's privacy is stolen, account theft, the common way is a Trojan horse. 2, completeness, such as the integrity of the data, for example, Kangxi Pass a bit 14 son, was at that time four elder brother Tamper Yizhao: Pass in four son, of course this is legend, Common way is XSS cross-site scripting attack and CSRF cross-site r

marks, With Htmlspecialchars ($string, ent_noquotes).In addition, as far as possible to use Htmlentities, in all English time htmlentities and htmlspecialchars no difference, can achieve the goal. However, in Chinese, htmlentities translates all HTML code, Along with its unrecognized Chinese characters are also converted.Htmlentities and Htmlspecialchars These two functions of the "string support is not good, can not be converted, so with htmlentities and Htmlspecialchars converted strings can

Laravel5 protects against XSS attacks. This article describes how to prevent XSS cross-site attacks in laravel5. We will share this with you for your reference. The details are as follows: Laravel 5 itself does not have this capability to

.document.cookie6.localstorage7.xmlhttprequest returned dataPS: Of course not only these2. Output checkIn general, when a variable is exported to an HTML page, it is encoded or escaped to protect against XSS attacks. The essence of XSS is "HTML injection", and the user's data is executed as part of the HTML code, thus confusing the original semantics and generati

XSS scripting attacks are more than just alert (1) even if It's over, the real use of XSS scripting attacks is to steal ordinary users ' cookies. Or steal the administrator's cookie. XSS classification (type):1. Reflection Type XSS2, Storage-type XSS3. DOM type XSSXSS Classi

There are many ways to launch XSS attacks on websites. Some built-in filter functions in php alone cannot be used. Even if you use filter_var, mysql_real_escape_string, htmlentities, and htmlspecialchars, strip_tags functions are used and cannot guarantee absolute security. Currently, many php development frameworks provide filtering methods against XSS

in a third-party script file, etc.) (bug: IE or a lower version of the browser may not be supported) 4. When setting a cookie, add the HttpOnly parameter (function: Can prevent the page from XSS attack, cookie information is stolen, can be compatible to IE6) (flaw: the website itself JS Code also cannot operate the cookie, and the function is limited, Only guarantee the security of cookies) 5. When de

What is XSS?XSS Cross-site scripting attack, a computer security vulnerability that often appears in Web applications, refers to malicious attackers inserting malicious HTML code into a Web page, and when a user browses to the page, the embedded malicious HTML code is executed, Scripting. So as to achieve the special purpose of malicious users.XSS is a passive attack, because it is passive and bad to use, s

request for forgery. A forged request can be any source,And not necessarily in the station. So we have only one way to do that is to filter the request processor. Using cookie information, the browser accesses the server with cookie information.1. Once you have logged into a website, open a tab page and visit another site.2. Visit another dangerous website in the event that the session is invalid, the dangerous website automatically submits the request or when the click submits the request.Prec

AntiXSS-Supports HTML while preventing XSS attacksCross-site scripting attacks (XSS) are no longer a fresh topic, and even a lot of big companies have suffered. The simplest and most straightforward way to prevent this is to not allow any HTML tag input to encode user input (HTMLEncode).But what if I want the user inpu

The prevention of cross-site PHP and XSS attacks has long been discussed, and many PHP sites in China have discovered XSS vulnerabilities. I accidentally saw an XSS vulnerability in PHP5 today. here is a summary. By the way, it is recommended that you use PHP5 to install a patch or upgrade it. If you don't know what

filtering XSS attacks using filter Blog Categories:Technology Life filter to achieve foot injection attack filter source http://winnie825.iteye.com/blog/1170833 First, the realization of the idea: 1. The use of regular expressions to implement script filtering, this method of high accuracy, but may be based on the requirements can not be changed; 2. In order to ensure flexible configuration (including regu

This article is from: Gao Shuang | coder. Original article address: http://blog.csdn.net/ghsau/article/details/17027893. Please note.XSS, also known as CSS, is short for cross sitescript. It is a common vulnerability in web programs. XSS is a passive and used for client attacks, so it is easy to ignore its dangers. The principle is that attackers input (pass in) malicious HTML code to a website with the

. Output checkIn general, when a variable is exported to an HTML page, it is encoded or escaped to protect against XSS attacks. The essence of XSS is "HTML injection", and the user's data is executed as part of the HTML code, thus confusing the original semantics and generating new semantics.Where XSS is triggered1.doc

XSS, also known as CSS, is short for Cross SiteScript. It is a common vulnerability in Web programs. XSS is a passive and used for client attacks, so it is easy to ignore its dangers. The principle is that attackers input (pass in) malicious HTML code to a website with the XSS vulnerability. When other users browse the

There are many ways to launch an XSS attack on your Web site, and just using some of the built-in filter functions of PHP is not a good deal, even if you will Filter_var,mysql_real_escape_string,htmlentities,htmlspecialchars , strip_tags These functions are used or not guaranteed to be absolutely secure. There are a lot of PHP development frameworks that provide filtering methods for anti-XSS