Description

Yacht is number one in connecting professionals.

Bounties

This is a responsible disclosure program without bounties.

Rules of engagement
Required
Not applicable
max. 5 requests/sec
Not applicable

Our promise to you

  • We aim to respond in ultimately two weeks, probably faster!
  • We are happy to respond to any questions, please use the button in the right top corner for this.
  • We respect the safe harbour clause that you can find below

Your promise to us

  • Provide detailed but to-the point reproduction steps
  • Include a clear attack scenario. How will this affect us exactly?
  • Remember: quality over quantity!
  • Reports should be written in English
  • Please do not discuss or post vulnerabilities without our consent (including PoC's on YouTube and Vimeo)
  • Please do not use automatic scanners -be creative and do it yourself! We cannot accept any submissions found by using automatic scanners. Scanners also won't improve your skills, and can cause a high server load (we'd like to put our time in thanking researchers rather than blocking their IP's 😉)
Domains

*.yacht.nl

Tier 2
URL
In scope

Important note: Please remove uploaded testfiles after you're done!

We are happy to announce our responisble disclosure. We've done our best to clean most of our known issues and now would like to request your help to spot the ones we missed! We are specifically looking for:

  • leaking of personal data
  • horizontal / vertical privilege escalation
  • SQLi
  • ...

Feedback
Would you like to help us improve our program or have some feedback to share, please send your anonymous feedback here:
Program feedback link
Please note this form will be checked periodically and should not be used for submission or support queries.

Out of scope

Spamming / scanning contact forms or forms that might initiate internal processes is strictly prohibited

Endpoints

Any endpoints which are not own by Randstad are out of scope, as for example :

  • Company alliance
  • Third parties systems are out of scope

Application

  • API key disclosure without proven business impact
  • Wordpress usernames disclosure
  • Pre-Auth Account takeover/OAuth squatting
  • Self-XSS that cannot be used to exploit other users
  • Verbose messages/files/directory listings without disclosing any sensitive information
  • CORS misconfiguration on non-sensitive endpoints
  • Missing cookie flags
  • Missing security headers
  • Cross-site Request Forgery with no or low impact
  • Presence of autocomplete attribute on web forms
  • Reverse tabnabbing
  • Bypassing rate-limits or the non-existence of rate-limits.
  • Best practices violations (password complexity, expiration, re-use, etc.)
  • Clickjacking without proven impact/unrealistic user interaction
  • CSV Injection
  • Sessions not being invalidated (logout, enabling 2FA, etc.)
  • Tokens leaked to third parties
  • Anything related to email spoofing, SPF, DMARC or DKIM
  • Content injection without being able to modify the HTML
  • Username/email enumeration
  • Email bombing
  • HTTP Request smuggling without any proven impact
  • Homograph attacks
  • XMLRPC enabled
  • Banner grabbing/Version disclosure
  • Not stripping metadata of files
  • Same-site scripting
  • Subdomain takeover without taking over the subdomain
  • Arbitrary file upload without proof of the existence of the uploaded file
  • Blind SSRF without proven business impact (pingbacks are not sufficient)
  • Disclosed/misconfigured Google Maps API keys
  • Host header injection without proven business impact

General

  • In case that a reported vulnerability was already known to the company from their own tests, it will be flagged as a duplicate
  • Theoretical security issues with no realistic exploit scenario(s) or attack surfaces, or issues that would require complex end user interactions to be exploited
  • Spam, social engineering and physical intrusion
  • DoS/DDoS attacks or brute force attacks
  • Vulnerabilities that only work on software that no longer receive security updates
  • Attacks requiring physical access to a victim's computer/device, man in the middle or compromised user accounts
  • Recently discovered zero-day vulnerabilities found in in-scope assets within 14 days after the public release of a patch or mitigation may be reported, but are usually not eligible for a bounty
  • Reports that state that software is out of date/vulnerable without a proof-of-concept
Severity assessment

Exceptional

  • RCE (Remote Code Execution)

Critical

  • Access to all customer personal data
  • SQL injection

High

  • Stored XSS without user interaction
  • Privilege escalation
  • Authentication bypass on critical infrastructure

Medium

  • XSS
  • CSRF with a significant impact

Low

  • XSS that requires lots of user interaction ( > 3 steps)
  • CSRF with a very limited impact
FAQ

.

All aboard!
Please log in or sign up on the platform

For obvious reasons we can only allow submissions or applications for our program with a valid Intigriti account.

It will only take 2 minutes to create a new one or even less to log in with an existing account, so don't hesitate and let's get started. We would be thrilled to have you as part of our community.

Researchers
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Last 90 day response times
avg. time first response
< 8 hours
avg. time to decide
< 5 days
avg. time to triage
< 8 hours
Activity
2/27
Randstad
closed a submission
2/27
Randstad
accepted a submission
2/22
logo
created a submission
2/22
Randstad
changed the in scope
2/7
Randstad
changed the out of scope
2/7
logo
created a submission
9/11
Randstad
accepted a submission
9/11
Randstad
closed a submission
9/8
logo
created a submission
9/7
logo
created a submission