Cross-Site Scripting (XSS)

What is Cross-Site Scripting (XSS)?

Cross-Site Scripting (XSS) is a type of cyberattack where attackers inject malicious scripts into web pages viewed by other users. This technique is often used to steal credentials, session tokens, or other sensitive information directly from the client’s browser.

How Cross-Site Scripting (XSS) Occurs?

1. User Input Handling:
   • Non-Sanitized Inputs: Failing to sanitize user inputs allows attackers to embed malicious scripts into web pages.
2. Malvertising
   • Compromised Advertisements: Using malicious advertisements to inject scripts.
3. Comment Fields
   • Injected Scripts: Placing scripts in comment sections that are executed when read.
4. Phishing
   • Deceptive Links: Convincing users to click on links that lead to XSS-infected pages.
5. Third-Party Widgets
   • Compromised Widgets: Exploiting vulnerable third-party widgets included on a webpage.

What are the Impacts of Cross-Site Scripting (XSS) on Businesses?

1. Financial Losses
   • Fraudulent Transactions: Financial losses from unauthorized transactions performed using stolen credentials.
2. Data Breaches
   • Stolen Information: Theft of sensitive personal and corporate data.
3. Reputation Damage
   • Loss of Consumer Confidence: Decreased user trust due to security vulnerabilities.
4. Operational Disruption
   • System Downtime: Interruptions in service while resolving XSS vulnerabilities.
5. Legal and Regulatory Consequences
   • Compliance Violations: Potential fines and legal issues due to insufficient security measures.