10025βInformation Disclosure - Sensitive Information in HTTP Referrer Header
PUBLISHEDsecurity alertInformational
Passive
Metadata
Summary
The HTTP header may have leaked a potentially sensitive parameter to another domain. This can violate PCI and most organizational compliance policies. You can configure the list of strings for this check to add or remove values specific to your environment.
Solution
Do not pass sensitive information in URIs.
Other info
The URL in the HTTP referrer header field appears to contain US Social Security Number(s).