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You can conduct a CSS security review by applying a checklist-driven procedure to stylesheets and frontend styling surfaces, identifying access control gaps, selector disclosure, and overlay abuse with OWASP-aligned output.

CSS selector disclosure occurs when class names, IDs, and selector patterns in stylesheets reveal hidden workflows or privileged capabilities, allowing attackers to map out unauthorized access paths through frontend styling reconnaissance.

Perform an access control review to verify whether role-specific or environment-specific stylesheets are protected from unauthorized access, producing evidence-based findings for confirmed issues and passed checks.

Yes, user-controlled styling abuse happens when user content, uploads, or injected markup drives overlays, deceptive layouts, or clickjacking-like behavior, and a user-controlled styling review assesses these visual deception risks.

The CSS security review covers access control, selector disclosure, user-controlled styling, and overlay abuse across code, configuration, architecture, and operational controls, generating OWASP-aligned output for confirmed issues and review gaps.

A checklist-driven CSS security review requires evidence-based findings for confirmed issues, review gaps, and passed checks, meaning it is limited by the thoroughness of the checklist and the availability of concrete evidence across code and configuration.