Client-Side Script Injection

Client-side script injection occurs when an attacker forces a web browser to execute unauthorized code within the context of a trusted financial website. This is often achieved through Cross-Site Scripting vulnerabilities in the web application itself or via malicious browser extensions.

Once the script is running, it can manipulate the Document Object Model to change displayed prices, inject fake login forms, or intercept user inputs. For traders, this can result in the execution of unfavorable trades or the theft of session tokens.

The attack exploits the browser tendency to trust scripts that appear to originate from the site domain. Mitigation requires developers to implement strict Content Security Policies and for users to utilize robust browser security extensions.

Because the browser environment is complex and highly dynamic, defending against script injection requires a multi-layered approach that includes both server-side protections and user-side caution. It is a persistent threat in the landscape of decentralized financial applications.