Selenium Grid Cross-Site Request Forgery

Selenium Server (Grid) before 4 allows CSRF because it permits non-JSON content types such as application/x-www-form-urlencoded, multipart/form-data, and text/plain. (2022-04-19, CVE-2022-28108)

Selenium Selenium Grid (formerly Selenium Standalone Server) Fixed in 4.0.0-alpha-7 is affected by: DNS rebinding. The impact is: execute arbitrary code (remote). The component is: WebDriver endpoint of Selenium Grid / Selenium Standalone Server. The attack vector is: Triggered by browsing to to a malicious remote web server. The WebDriver endpoint of Selenium Server (Grid) is vulnerable to DNS rebinding. This can be used to execute arbitrary code on the machine. (2022-04-15, CVE-2022-28109)

The absence of Anti-CSRF tokens may lead to a Cross-Site Request Forgery attack that can result in executing a specific application action as another logged in user, e.g. steal their account by changing their email and password or silently adding a new admin user account when executed from the administrator account.

The attacker may copy one of your web application forms, e.g. email/password change form.

The webpage will contain a form with the exact set of fields as the original application but with input values already provided and the submit button replaced with a Javascript code causing auto-submission. When the page is accessed the form will be immediately submitted and page contents replaced with a valid content or a redirect to your original application.

One of your application users who is already logged in can be then tricked to navigate to such malicious page e.g. by clicking a link in a phishing email, and the pre-populated form content will be submitted to your application like it would be submitted by your user.