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Fix for CWE-601: URL Redirection to Untrusted Site ('Open Redirect') #6

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Fix for CWE-601: URL Redirection to Untrusted Site ('Open Redirect') #6

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4 changes: 4 additions & 0 deletions ee/api/billing.py
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
from django.utils.http import is_safe_url
from typing import Any, Optional

import posthoganalytics
Expand Down Expand Up @@ -115,6 +116,9 @@ def activation(self, request: Request, *args: Any, **kwargs: Any) -> HttpRespons
billing_service_token = build_billing_token(license, organization)
url = f"{url}&token={billing_service_token}"

if not is_safe_url(url, allowed_hosts={request.get_host()}):
raise ValidationError("Unsafe redirect detected.")

return redirect(url)

@action(methods=["GET"], detail=False)
Expand Down