Articles Archives | Acunetix

Understanding Injection Attacks in Application Security: Types, Tools, and Examples

Wed, 12 Feb 2025 13:38:01 +0000

How Injection Attacks Exploit Web Application Vulnerabilities Injection attacks occur when malicious input is inserted into a web application, exploiting vulnerabilities in unvalidated user input to execute unintended commands. Attackers craft payloads that manipulate how the application processes data, often leading to unauthorized access, data...

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Strengthen Your Web Applications with HTTP Security Headers

Wed, 12 Feb 2025 13:35:30 +0000

What is a HTTP security header? An HTTP security header is a response header that helps protect web applications by providing browsers with specific instructions on how to handle website content securely. These headers play a crucial role in mitigating various cyber threats, such as...

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Disabling Directory Listing on Your Web Server – And Why It Matters

Wed, 12 Feb 2025 13:33:20 +0000

By default, some web servers allow directory listing, which means that if no default index file (such as index.html or index.php) is present, the server will display a list of all files and directories in that folder. This can expose sensitive files, scripts, and configurations,...

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XSS Filter Evasion: How Attackers Bypass XSS Filters – And Why Filtering Alone Isn’t Enough

Wed, 12 Feb 2025 13:12:01 +0000

XSS filter evasion techniques allow attackers to bypass cross-site scripting (XSS) protections designed to block malicious scripts. This article explores some of the most common filter bypass strategies, explains why relying solely on filtering is ineffective, and outlines the best practices for preventing XSS attacks....

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Preventing CSRF Attacks with Anti-CSRF Tokens: Best Practices and Implementation

Wed, 12 Feb 2025 12:55:11 +0000

The most widely used method to prevent cross-site request forgery (CSRF) attacks is the implementation of anti-CSRF tokens. These are unique values generated by a web application and validated with each request to ensure authenticity. CSRF attacks exploit a user’s active session to execute unauthorized...

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Mitigating Fragmented SQL Injection Attacks: Effective Solutions

Wed, 12 Feb 2025 12:45:29 +0000

This blog post breaks down Fragmented SQL Injection, a method hackers use to bypass authentication by manipulating two different input fields at the same time. Our security expert explains why single quotes matter in SQL injection attacks and how using Prepared Statements (also called Parameterized...

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JSON Web Token Attacks And Vulnerabilities

Wed, 12 Feb 2025 12:40:30 +0000

JSON Web Tokens (JWTs) are a widely used method for securely exchanging data in JSON format. Due to their ability to be digitally signed and verified, they are commonly used for authorization and authentication. However, their security depends entirely on proper implementation—when misconfigured, JWTs can...

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IP Disclosure of Servers Behind WAFs Using WordPress XML-RPC

Wed, 12 Feb 2025 12:31:39 +0000

The XML-RPC protocol was originally designed to simplify cross-platform communication between applications. However, recent security research has revealed that it can be exploited for IP disclosure attacks. This article explores how XML-RPC functions, its vulnerabilities in WordPress, and how attackers can use it to expose...

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Identifying WordPress Websites On Local Networks (behind Firewalls) and Bruteforcing the Login Pages

Wed, 12 Feb 2025 11:46:54 +0000

This article explores how attackers can leverage the XSHM attack to detect WordPress sites operating within internal networks or behind firewalls. It also demonstrates how this method can be used to carry out brute-force login attempts on these protected installations. According to statistics from w3techs,...

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