Cyber Risks · PortSwigger Research

Password returned in URL query string

Summary: PortSwigger Research describes an application that responds to login submissions with a link containing the user's password in the URL query string. Sensitive information in URLs can be logged in the browser, the web server, and any forward or reverse proxy between them, and may be disclosed to third parties through the Referer header when off-site links are followed.

Why it matters: Passwords placed in URLs can end up in browser history, server logs, and proxy logs, and the resulting compromises are extremely difficult to investigate because the audit trail is obscured. Users who reused that password elsewhere are exposed even if the application itself handles only non-sensitive information.

Read the original at PortSwigger Research ↗

Topics
Vulnerabilities & Patching
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