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Responsible Disclosure

Extract all users emails end with( @company.com ) with names in DB of Company users

Merroun Lahcen — DevSecure Published il y a 6 mois
image de Extract all users emails end with( @company.com ) with names in DB of Company users

Hi, I'm Merroun Lahcen from DevSecure — we specialize in uncovering hidden vulnerabilities that pose real-world risks to modern web applications.


All vulnerabilities shared in these write-ups are fully redacted — any company names, domains, or sensitive details are replaced with placeholders such as company.com. Each finding was responsibly disclosed through the Intigriti platform and has been verified and resolved by the affected vendor.


Every post represents our commitment to ethical hacking, responsible disclosure, and continuous learning — helping organizations strengthen their defenses while contributing to a safer global cybersecurity ecosystem.

i found a method to get all emails with @company.com in company admin db the method is in 2 steps after login as admin 1/ go to this endpoint with PUT request admin.company.com/admin/services/user/settings [{"idUser":Here_Company_User_Id,"validToDate":"2023-03-06T00:00:00.000Z","operation":"1"}] with intruder you could do this and extract all of them just for prof of concept this is a list of valid ids wich i found : 1 2 19 20 ... 824050 wich you could use and you can download the attached file wich you can get more idUsers of @company.com emails 2/ go tho this endpoint you will get the emails with first and last names admin.company.com/admin/user/settings/userlist?usersWithNoRole=false Impact information disclosure Platform : Intigriti Timeline : Reported: 05/03/2023 Triaged: 07/03/2022 Accepted & paid: 07/03/202 Bounty: €1,000