Squarespace fix guide
Permissive CORS Configuration on Squarespace
The Access-Control-Allow-Origin header is set to wildcard (*) or reflects any origin, which may allow unauthorized cross-origin access to resources.
Issue ID: SEC-CORS-001Severity: moderateEffort: S
Why this matters
The Access-Control-Allow-Origin header is set to wildcard (*) or reflects any origin, which may allow unauthorized cross-origin access to resources. This affects browser trust signals and whether visitors feel safe submitting contact details.
Squarespace fix path
How to fix this on Squarespace
Check page settings, navigation, and code injection.
- 1Identify whether this is page-level or site-level.
- 2Apply the fix.
- 3Republish and confirm.
After you fix it
- ✓Check response headers and confirm CORS is restricted to trusted origins
Same fix, other platforms
Fix permissive cors configuration on a different CMS
Other fixes
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