{"id":8800,"date":"2026-05-29T15:32:52","date_gmt":"2026-05-29T13:32:52","guid":{"rendered":"https:\/\/mybox.com\/help\/?post_type=manual_kb&#038;p=8800"},"modified":"2026-06-09T05:28:42","modified_gmt":"2026-06-09T03:28:42","slug":"cum-functioneaza-atacurile-sql-injection-sqli","status":"publish","type":"manual_kb","link":"https:\/\/mybox.com\/help\/ro\/knowledgebase\/how-sql-injection-sqli-attacks-work\/","title":{"rendered":"Cum func\u021bioneaz\u0103 atacurile de tip SQL Injection (SQLi)"},"content":{"rendered":"<div class=\"translation-block translation-block-merged\">\n<p class=\"wp-block-paragraph\">SQL Injection (SQLi) is one of the most common web application vulnerabilities. It occurs when an application improperly handles user input and allows malicious SQL commands to be executed against a database.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If successfully exploited, an SQL Injection vulnerability can allow attackers to view, modify, delete, or manipulate data stored in a database.<\/p>\n\n\n\n<\/div>\n\n<div id=\"mybox-869199273\" class=\"mybox-content mybox-entity-placement\"><div class=\"early-access-banner-inpost\">\r\n  <div class=\"banner-left-inpost\">\r\n    <div class=\"icon-box-inpost\">\r\n      <img decoding=\"async\" src=\"https:\/\/mybox.com\/help\/wp-content\/uploads\/2026\/02\/square-info-icon.svg\" alt=\"Info\">\r\n    <\/div>\r\n    <div class=\"text-box-inpost\">\r\n      <span class=\"label-inpost\"><span class=\"translation-block translation-block-banner-text\">Acces timpuriu<\/span><\/span>\r\n      <h4><span class=\"translation-block translation-block-banner-text\">Mai ave\u021bi nevoie de ajutor?<\/span><\/h4>\r\n      <p><span class=\"translation-block translation-block-banner-text\">Contacta\u021bi echipa noastr\u0103 de servicii pentru clien\u021bi.<\/span><\/p>\r\n    <\/div>\r\n  <\/div>\r\n\r\n  <div class=\"banner-right-inpost\">\r\n    <a href=\"https:\/\/panel.mybox.com\/helpdesk2\/v\/list\/\" class=\"banner-button-inpost\"><span class=\"translation-block translation-block-banner-text\">Trimite mesaj<\/span><\/a>\r\n  <\/div>\r\n<\/div><\/div>\n\n<div class=\"translation-block translation-block-merged\"><p class=\"wp-block-paragraph\">Understanding how SQL Injection works can help website owners and developers reduce the risk of unauthorized access to sensitive information.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/how-sql-injection-sqli-attacks-work\/#What_Is_SQL_Injection\" >What Is SQL Injection?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/how-sql-injection-sqli-attacks-work\/#How_Does_an_SQL_Injection_Attack_Work\" >How Does an SQL Injection Attack Work?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/how-sql-injection-sqli-attacks-work\/#Potential_Consequences_of_SQL_Injection\" >Potential Consequences of SQL Injection<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/how-sql-injection-sqli-attacks-work\/#Common_Entry_Points\" >Common Entry Points<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/how-sql-injection-sqli-attacks-work\/#How_to_Protect_Against_SQL_Injection\" >How to Protect Against SQL Injection<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/how-sql-injection-sqli-attacks-work\/#Use_Parameterized_Queries\" >Use Parameterized Queries<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/how-sql-injection-sqli-attacks-work\/#Validate_User_Input\" >Validate User Input<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/how-sql-injection-sqli-attacks-work\/#Apply_the_Principle_of_Least_Privilege\" >Apply the Principle of Least Privilege<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/how-sql-injection-sqli-attacks-work\/#Keep_Software_Updated\" >Keep Software Updated<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/how-sql-injection-sqli-attacks-work\/#Use_a_Web_Application_Firewall_WAF\" >Use a Web Application Firewall (WAF)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/how-sql-injection-sqli-attacks-work\/#Monitoring_and_Detection\" >Monitoring and Detection<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/how-sql-injection-sqli-attacks-work\/#SQL_Injection_and_WordPress\" >SQL Injection and WordPress<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/how-sql-injection-sqli-attacks-work\/#Practical_Implications\" >Practical Implications<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/how-sql-injection-sqli-attacks-work\/#Summary\" >Summary<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_SQL_Injection\"><\/span>What Is SQL Injection?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SQL Injection is a type of attack that targets applications connected to a database.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The vulnerability occurs when user-supplied data is inserted directly into an SQL query without proper validation or parameterization.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As a result, an attacker may be able to alter the intended database query and force the application to perform actions it was never designed to allow.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Does_an_SQL_Injection_Attack_Work\"><\/span>How Does an SQL Injection Attack Work?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Many websites use forms, search fields, login pages, and other input fields to interact with databases.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example, a website may verify user credentials using a database query.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A vulnerable application might combine user input directly into the SQL statement without validating it properly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">An attacker can then submit specially crafted input that changes the behavior of the query.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Instead of processing only the intended request, the database may execute additional commands supplied by the attacker.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Potential_Consequences_of_SQL_Injection\"><\/span>Potential Consequences of SQL Injection<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The impact of a successful SQL Injection attack depends on the permissions available to the application and the database configuration.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Possible consequences include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Viewing confidential data<\/li>\n\n\n\n<li>Accessing user accounts<\/li>\n\n\n\n<li>Modifying database records<\/li>\n\n\n\n<li>Deleting information<\/li>\n\n\n\n<li>Bypassing authentication systems<\/li>\n\n\n\n<li>Extracting customer data<\/li>\n\n\n\n<li>Disrupting website functionality<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">In severe cases, attackers may gain extensive access to information stored within the database.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Entry_Points\"><\/span>Common Entry Points<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SQL Injection vulnerabilities are often found in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Login forms<\/li>\n\n\n\n<li>Search fields<\/li>\n\n\n\n<li>Contact forms<\/li>\n\n\n\n<li>URL parameters<\/li>\n\n\n\n<li>API requests<\/li>\n\n\n\n<li>User account management features<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Any location where user input is processed by a database query can potentially become a target if proper security measures are not implemented.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Protect_Against_SQL_Injection\"><\/span>How to Protect Against SQL Injection<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Preventing SQL Injection requires secure application development practices.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Use_Parameterized_Queries\"><\/span>Use Parameterized Queries<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Parameterized queries (also known as prepared statements) separate user input from SQL commands.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is considered one of the most effective protections against SQL Injection attacks.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Validate_User_Input\"><\/span>Validate User Input<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Applications should validate incoming data and only accept values that match expected formats.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Email fields should contain valid email addresses.<\/li>\n\n\n\n<li>Numeric fields should accept only numbers.<\/li>\n\n\n\n<li>Date fields should follow the expected date format.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Apply_the_Principle_of_Least_Privilege\"><\/span>Apply the Principle of Least Privilege<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Database accounts used by applications should only have the permissions required for normal operation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Limiting privileges can reduce the impact of a successful attack.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Keep_Software_Updated\"><\/span>Keep Software Updated<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Regularly update:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Content management systems<\/li>\n\n\n\n<li>Plugins<\/li>\n\n\n\n<li>Themes<\/li>\n\n\n\n<li>Frameworks<\/li>\n\n\n\n<li>Database software<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Security updates often address vulnerabilities that could otherwise be exploited.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Use_a_Web_Application_Firewall_WAF\"><\/span>Use a Web Application Firewall (WAF)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A Web Application Firewall can help detect and block malicious requests before they reach the application.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">While a WAF should not replace secure coding practices, it can provide an additional layer of protection.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Monitoring_and_Detection\"><\/span>Monitoring and Detection<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Early detection can help minimize the impact of an attack.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Consider monitoring for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Unusual database activity<\/li>\n\n\n\n<li>Unexpected application errors<\/li>\n\n\n\n<li>Repeated login attempts<\/li>\n\n\n\n<li>Suspicious URL parameters<\/li>\n\n\n\n<li>Large volumes of database requests<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Regular log reviews can help identify potential security incidents.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"SQL_Injection_and_WordPress\"><\/span>SQL Injection and WordPress<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">WordPress itself includes security mechanisms designed to reduce the risk of SQL Injection vulnerabilities. However, vulnerabilities can still be introduced through outdated plugins, themes, or custom code.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To improve security:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Install updates regularly.<\/li>\n\n\n\n<li>Remove unused plugins and themes.<\/li>\n\n\n\n<li>Use reputable extensions from trusted developers.<\/li>\n\n\n\n<li>Perform regular security audits.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Practical_Implications\"><\/span>Practical Implications<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SQL Injection remains a common attack technique because many websites process user input and interact with databases. Even a small coding mistake can create a vulnerability that exposes sensitive information.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For website owners, maintaining updated software and following secure development practices can significantly reduce risk. For developers, proper input validation and parameterized queries are essential components of application security.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Summary\"><\/span>Summary<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SQL Injection is a database attack that exploits improperly handled user input within web applications. By manipulating database queries, attackers may gain access to sensitive information or perform unauthorized actions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Protection against SQL Injection relies on secure coding practices, input validation, parameterized queries, limited database permissions, regular software updates, and ongoing monitoring. Implementing these measures helps reduce the likelihood of successful attacks and improves the overall security of a website.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"template":"","format":"standard","manualknowledgebasecat":[9,10],"manual_kb_tag":[6639,806,6286,6632,6633,6634,6635,6636,6637,6638],"class_list":["post-8800","manual_kb","type-manual_kb","status-publish","format-standard","hentry","manualknowledgebasecat-databases","manualknowledgebasecat-safety","manual_kb_tag-vulnerability-assessment","manual_kb_tag-database-security","manual_kb_tag-input-validation","manual_kb_tag-sql-injection","manual_kb_tag-web-application-security","manual_kb_tag-parameterized-queries","manual_kb_tag-prepared-statements","manual_kb_tag-principle-of-least-privilege","manual_kb_tag-web-application-firewall","manual_kb_tag-security-updates"],"_links":{"self":[{"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/manual_kb\/8800","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/manual_kb"}],"about":[{"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/types\/manual_kb"}],"author":[{"embeddable":true,"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":2,"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/manual_kb\/8800\/revisions"}],"predecessor-version":[{"id":8802,"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/manual_kb\/8800\/revisions\/8802"}],"wp:attachment":[{"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/media?parent=8800"}],"wp:term":[{"taxonomy":"manualknowledgebasecat","embeddable":true,"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/manualknowledgebasecat?post=8800"},{"taxonomy":"manual_kb_tag","embeddable":true,"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/manual_kb_tag?post=8800"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}