Individual skill
testing-registration-and-account-flaws
Identifying and exploiting weaknesses in account registration including duplicate/overwrite registration, weak password policy, missing email verification, disposable email acceptance, route-clobbering usernames, pre-account-takeover, and role mass-assignment.
internal/tools/skills/data/web-application-security/testing-registration-and-account-flaws/SKILL.md
Source commit d42f381ad34843e71a42658e5c57290c713e85af
What was checked
- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- Yes
- Repository scan complete
- No
- Skill scan complete
- No
- Observed behavior
- Network or broad shell
- Last checked
- Nov 9, 2026
These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.
Install this skill
Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.
An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.
Repository context
- Repository stars (not skill ratings)
- 1,313
- Repository last updated
- Nov 8, 2026
- License
- Apache-2.0
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- cybersecurity Repository topic
- security Repository topic
- bug-bounty Repository topic
- automation Repository topic
- autonomous-pentesting Repository topic
- ai-agent Repository topic
- ai-security Repository topic
- ethical-hacking Repository topic
- golang Repository topic
- penetration-testing Repository topic
- penetration-testing Declared skill tag
- registration Declared skill tag
- account-takeover Declared skill tag
- mass-assignment Declared skill tag
- email-verification Declared skill tag
- owasp Declared skill tag
- web-security Declared skill tag
- security Derived category
- testing Derived category
- security-application Derived category
Files and excerpt
File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.
Browse files
Read excerpt
# Testing Registration and Account Flaws
## When to Use
- During authorized penetration tests of any self-service sign-up / account-creation flow
- When the application lets users choose usernames, emails, or other identifiers that may collide or clobber resources
- For validating that registration enforces verification, uniqueness, a strong password policy, and server-controlled roles
- When testing for pre-account-takeover where an attacker registers an account before the legitimate owner
- During bug bounty programs targeting broken authentication, mass assignment, and improper input validation (OWASP A04/A07:2021)
## Prerequisites
- **Authorization**: Written penetration testing agreement for the target application
- **Burp Suite Professional**: Proxy + Repeater + Intruder for replaying and tampering sign-up requests