Cross-Site Scripting Archives

From Self-XSS to Site-Wide Account Takeover: How Minor Vulnerabilities Cascade into Major Breaches

4 August 2025 by Krishna

Cross-Site Scripting (XSS) remains one of the most potent and persistent vulnerabilities in modern web applications. It is often underestimated, especially when classified under a low-risk “Self-XSS” category. However, as this real-world case study will reveal, even seemingly benign weaknesses can spiral into catastrophic site-wide account takeovers when chained with secondary vulnerabilities like cache poisoning.

2024 CWE Top 25 Most Dangerous Software Weaknesses: Improper Input Validation (CWE-20)

17 March 2025 by Krishna

Improper input validation occurs when a software application fails to verify that input received is within the expected range, format, type, or value before processing. This weakness paves the way for a variety of security exploits, including injection attacks, buffer overflows, and data manipulation, which can compromise application functionality and user data.

Understanding CWE-79: Cross-Site Scripting (XSS) in 2024 – A Strategic Guide for Software Architects and C-Suite Executives

6 March 2025 by Krishna

At its core, XSS exploits the trust a user places in a web application. By manipulating input fields, URLs, or other interactive elements, attackers can introduce scripts that execute commands, steal sensitive information, or alter website functionality.

CWE-113: HTTP Response Splitting – A Comprehensive Guide for Penetration Testers

31 January 202531 January 2025 by Krishna

HTTP Response Splitting is a web application vulnerability that occurs when an attacker is able to manipulate HTTP headers to split the response sent to the client. This manipulation exploits the way headers are processed by web servers and browsers, allowing attackers to inject malicious content into the response stream. The result can be a range of attacks, from cross-site scripting (XSS) to cache poisoning and web cache poisoning, all of which can disrupt business operations, damage brand reputation, and compromise sensitive data.

In-Depth Analysis of SANS Top 25 CWE-94: JSON Injection and Its Implications for Penetration Testers

29 January 202529 January 2025 by Krishna

**JSON Injection** is a form of **injection vulnerability** that occurs when an application improperly handles user input within a JSON object. JSON (JavaScript Object Notation) is widely used for data exchange between web clients and servers. When applications fail to validate or sanitize user input before incorporating it into a JSON object, attackers can inject malicious data, manipulating the application’s behaviour.

JSON Injection primarily targets the integrity of the data being exchanged, potentially altering application logic, bypassing authentication, or even leading to more severe attacks like remote code execution. It is particularly dangerous in systems that use JSON for configuration files, user inputs, or data transfer, which is the case in many modern web applications.