Content-Security-Policy Bypass Scanner

Scanner aims to identify implementation weaknesses in Content-Security-Policy (CSP) within web applications. CSP is widely used in web security to prevent various types of code injection attacks, especially Cross-Site Scripting (XSS). The effectiveness of CSP depends on its correct implementation, making it critical for developers and security teams to frequently evaluate its robustness. This scanner helps security professionals and developers pinpoint CSP misconfigurations. By scanning digital assets, it ensures policies are correctly set to block untrusted scripts from execution. Deployed by web developers and security analysts, it plays a vital role in maintaining secure web environments.

Cross-Site Scripting (XSS) is a common vulnerability detected in web applications. This vulnerability allows attackers to inject scripts into web pages viewed by other users, leading to unauthorized actions, data theft, and user compromise. A typical attack involves injecting scripts that execute within the user's browser, mimicking legitimate interactions. Failure to properly configure Content-Security-Policy can leave applications susceptible to XSS attacks. Security experts emphasize the importance of strict CSP rules to mitigate XSS. This scanner identifies potential weaknesses where CSP rules may be inadequately configured, paving the way for proactive defense measures.

The detected vulnerability involves misuse of CSP implementation, allowing script execution from untrusted sources like clients6.google.com. The technical focus is on checking the response headers for any mention of CSP. The scanner looks for specific headers indicating a CSP policy is in place. If CSP rules allow script execution from untrusted domains, possibly through clients6, the application is marked vulnerable. This indicates the potential for injecting scripts with `