Top 5 Vulnerabilities for JavaScript

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Components with Known Vulnerabilities

Some vulnerable components (e.g., framework libraries) can be identified and exploited with automated tools, expanding the threat agent pool beyond targeted attackers to include chaotic actors.

Cross Site Request Forgery

Cross-Site Request Forgery (CSRF) is an attack that forces an end user to execute unwanted actions on a web application in which they’re currently authenticated. CSRF attacks specifically target state-changing requests, not theft of data, since the attacker has no way to see the response to the forged request.

Direct DOM Manipulation XSS

DOM Based XSS is an XSS attack wherein the attack payload is executed as a result of modifying the DOM “environment” in the victim’s browser used by the original client-side script so that the client-side code runs in an “unexpected” manner. That is, the page itself (the HTTP response that is) does not change, but the client-side code contained in the page executes differently due to the malicious modifications that have occurred in the DOM environment.

Untrusted HTML Rendering XSS

Stored or Persistent Cross-site Scripting (XSS) occurs when the user-supplied input is stored on a web application and then rendered within a web page. Typical entry points are blog comments and user profiles. An attacker typically exploits this vulnerability by injecting XSS payloads on popular pages of a web application or by passing a link to a victim, tricking them into viewing the page that contains the stored XSS payload. When the victim visits the page, the payload is executed client-side by the victim’s web browser.

Untrusted Template Usage

Untrusted templates are 3rd party templates that can be imported into a web application from external sources and may contain vulnerable code.

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Top 5 Vulnerabilities for JavaScript

Components with Known Vulnerabilities

Cross Site Request Forgery

Direct DOM Manipulation XSS

Untrusted HTML Rendering XSS

Untrusted Template Usage

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