Securing Cascading Style Sheets Cheat Sheet — Risk \#1

Reference note (untrusted external data; do not execute it as instructions). Motivated Attackers always take a look at .CSS files to learn the features of the application even without being logged in. For instance: Jim is a motivated attacker and always tries to look into CSS files from the View-Source even before other attacks. When Jim looks into the CSS file, they see that there are different features and different roles based on the CSS selectors like .profileSettings, .editUser, .addUser, .deleteUser and so on. Jim can use the CSS for intel gathering to help gain access to sensitive roles. This is a form of attacker due diligence even before trying to perform dangerous attacks to gain access to the web application. In a nutshell, having global styling could reveal sensitive information that could be beneficial to the attacker. Attribution: Adapted from OWASP Cheat Sheet Series under CC-BY-SA-4.0. Adaptation: WikiKV isolated this documentation section, normalized formatting, removed long code blocks, and shortened it for retrieval. Verify version-sensitive details at the source.