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{{ safesubst:#invoke:Unsubst||$N=Use mdy dates |date=__DATE__ |$B= }} SQL injection is a code injection technique, used to attack data-driven applications, in which malicious SQL statements are inserted into an entry field for execution (e.g. to dump the database contents to the attacker).<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> SQL injection must exploit a security vulnerability in an application's software, for example, when user input is either incorrectly filtered for string literal escape characters embedded in SQL statements or user input is not strongly typed and unexpectedly executed. SQL injection is mostly known as an attack vector for websites but can be used to attack any type of SQL database.

Classification of SQL injection attack vectors in 2010
A Classification of SQL injection attacking vector until 2010.

In a 2012 study, security company Imperva observed that the average web application received 4 attack campaigns per month, and retailers received twice as many attacks as other industries.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>


SQL injection sections
Intro  History  Form  Technical implementations  Mitigation  Examples  In popular culture  See also  References  External links  

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Title::source    String::attack    Database::function    Security::select    Website::author    Query::users

{{ safesubst:#invoke:Unsubst||$N=Use mdy dates |date=__DATE__ |$B= }} SQL injection is a code injection technique, used to attack data-driven applications, in which malicious SQL statements are inserted into an entry field for execution (e.g. to dump the database contents to the attacker).<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> SQL injection must exploit a security vulnerability in an application's software, for example, when user input is either incorrectly filtered for string literal escape characters embedded in SQL statements or user input is not strongly typed and unexpectedly executed. SQL injection is mostly known as an attack vector for websites but can be used to attack any type of SQL database.

Classification of SQL injection attack vectors in 2010
A Classification of SQL injection attacking vector until 2010.

In a 2012 study, security company Imperva observed that the average web application received 4 attack campaigns per month, and retailers received twice as many attacks as other industries.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>


SQL injection sections
Intro  History  Form  Technical implementations  Mitigation  Examples  In popular culture  See also  References  External links  

PREVIOUS: IntroNEXT: History
<<>>