Identifying login and registration forms - Port Swigger
Summary: PortSwigger Research describes how Burp Scanner identifies login and registration forms during crawling, adding any form that meets all of its criteria to a list. It then separates registration forms from login forms using a series of ordered criteria, such as comparing the number of password fields and then text fields, and only enters a username or email address when the related fields meet its conditions.
What's compelling: The scanner's authenticated coverage depends on recognizing the password field and on username fields meeting its conditions; when a username field does not, Burp Scanner can identify the form but cannot enter the corresponding data, leaving that part of the crawl unauthenticated.
Read the original at PortSwigger Research ↗
- Topics
- Vulnerabilities & Patching
- Related
- Attackers Exploit UnrealIRCd Flaw That Enables Server-Level Command Injection Cyber Risks · Nov 14, 2026U.S. CISA adds Check Point and UnrealIRCd flaws to its Known Exploited Vulnerabilities catalog Cyber Risks · Nov 14, 2026PostgreSQL Patches 52 Flaws, Including 22-Year-Old Bug Enabling Authenticated RCE Cyber Risks · Nov 13, 2026