xss injection prevention

continue running the subsequent program logic if the attacker enters the following URL: http://www.----------------------? personid=6414 or 2=2 The SQL statements are grouped as follows: select * FROM table name where userid=1433620 and addrcontactid=6414 or 2=2 Prevention methods SQL injection vulnerabilities can be described as "sink, Shan", which is very common on the web, usually because p

Example: SQL injection attack XSS attacks Copy Code code as follows: Arbitrary code Execution file contains and CSRF. } There are a lot of articles about SQL attacks and all kinds of anti injection scripts, but none of this solves the underlying problem of SQL injection See Code: Co

PHP Tutorial SQL Prevention injection and attack technology implementation and methods1. The MAGIC_QUOTES_GPC option in the PHP configuration file php.ini is not turned on and is set to off 2. Developers do not check and escape data types But in fact, the 2nd is the most important. I think that it is the most basic quality of a web programmer to check the data type entered by the user and submit the corre

The method of website injection and prevention: http://topic.csdn.net/u/20090729/14/26381958-0d6e-4b90-bc90-d275e9621f93.html Never use dynamic assembled SQL statements. You can use parameterized SQL statements or directly use stored procedures for data query and access. For string parameters, single quotes should be replaced, and "'" should be replaced with "'". Never trust users' input. Vali

If html tags are filtered to prevent xss injection, the rich text editor is useless. If html tags are kept, xss injection is not prevented. Normally, how does one solve this problem ??? Only filter specific tags ??? If html tags are filtered to prevent xss

malicious use of websites. Although it sounds like XSS, it is very different from XSS, and the attack method is almost different. XSS uses trusted users in the site, while CSRF uses trusted websites by disguising requests from trusted users. Compared with XSS attacks, CSRF attacks are often less popular (so the resour

SqlParameter ("@CreateTime", sqldbtype.nvarchar,200)}; Param[0]. Value = new Guid (this. Examtitlecode.value);PARAM[1]. Value = new Guid (QUESTIONSID);PARAM[2]. Value = anserdt.rows[0]["Multiplechoice"]. ToString ();PARAM[3]. Value = rightoption;PARAM[4]. Value = answeroption;PARAM[5]. Value = Isright? "1": "0";PARAM[6]. Value = Convert.ToInt32 (question.rows[0]["score"]);PARAM[7]. Value = Isright? Convert.ToInt32 (question.rows[0]["Score"]): 0;PARAM[8]. Value = this. Remark.innertext;PARAM[9].

If you want to prevent XSS injection from filtering HTML tags, the Rich text Editor's functionality is gone, filtered together, and if you keep HTML, you can't prevent XSS injection. How does normal usually deal with this problem??? Filter only specific tags??? Reply content: If you want to prevent

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 Filter_var,mysql_real_escape_string,htmlentities,htmlspecialchars , strip_tags These functions are used or not guaranteed to be absolu

table after executing the SQL statement. For example: Correct administrator account and password for login intrusion.Fix It 1: Use JavaScript scripts to filter special characters (not recommended) If the attacker disables JavaScript or can make a SQL injection attack.Fix it 2: Use MySQL's own function to filter. Omitting operations such as connecting to a database $user =mysql_real_escape_string ($_post[' use