htmlentities xss

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The default parameter of the php function htmlentities is not filtered & amp; #39;, resulting in xss attacks.

Gareth Heyes posted an "htmlentities is badly designed": http://www.thespanner.co.uk/2007/11/26/htmlentities-is-badly-designed/ on his blog The general idea is that htmlentities will not be filtered by default parameters, resulting in xss and so on.

Intrusion-PHP's ultimate solution to prevent XSS injection "information security" "Hack"

Update20151202:Thank you for your attention and answer, at present I learned from various ways of defense methods, organized as follows:

Intrusion-PHP's ultimate solution for XSS injection Defense [Information Security] [Hack]

Update20151202: Thank you for your attention and answers. The defense methods I have learned from various methods are as follows: PHP outputs html directly, and the following methods can be used for filtering: {code ...} if PHP is output to JS Code

XSS and xss

XSS and xss1. Introduction Cross site script (XSS) is short for avoiding confusion with style css. XSS is a computer security vulnerability that often occurs in web applications and is also the most popular attack method on the web. So what is

Common security issues in PHP development and solutions (such as SQL injection, CSRF, XSS, CC, etc.) _php tips

Talking about PHP security and anti-SQL injection, prevent XSS attack, anti-theft chain, anti-CSRF Objective: First of all, the author is not a web security experts, so this is not a Web security expert-level article, but learning notes, careful

Workarounds for XSS attacks

In my previous "front-end security XSS attack" article, did not put the solution of XSS attack is complete, and the attack of XSS is so multifarious, there is not a recruit "lone nine swords" can contend, after all, so many scenarios, developers can

Workarounds for XSS attacks

In my previous "front-end security XSS attack" article, did not put the solution of XSS attack is complete, and the attack of XSS is so multifarious, there is not a recruit "lone nine swords" can contend, after all, so many scenarios, developers can

Solutions to XSS attacks

Solutions to XSS attacks In my previous article "XSS attacks of front-end security", I did not provide a complete solution to XSS attacks, and XSS attacks were so varied, are there any tricks that can be used to compete? After all, developers cannot

PHP 5.4 Deprecated magic_quotes_gpc,php security escape function (Addslashes, Htmlspecialchars, Htmlentities, mysql_real_escape_string, Strip_ Tags

1. Addslashes ()Addslashes () escapes special characters in SQL statements, including ('), ("), (), (NUL) four characters, which are used when the DBMS does not have its own escape function, but if the DBMS has its own escape function, it is

Organize PHP anti-injection and XSS attack Universal filtering, phpxss_php tutorial

Organize PHP anti-injection and XSS attack Universal filtering, PHPXSS 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

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