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Bug bounty reports15,219

Publicly disclosed HackerOne reports, with the platform's own outcome and severity.

Program:Nextcloud
Status
Severity
Weakness
Year
Bounty paid5
Access stated
  • No account0
  • A user account0
  • Admin or privileged0
Access needed
Technique:2FA bypass
Clear filters5 of 15,219 reports
Disclosed bug bounty reports
ReportStatusWeaknessSeverityDisclosedBountyVotes
Two-factor authentication enforcement bypassAnalysed#1050244ValidNo weakness recordedHigh2021-07-31$75064
2FA Session not expires after the password resetAnalysed#486693ValidAuthenticationMedium2021-01-18$5035
Ability to by-pass second factorAnalysed#2419776ValidAuthenticationMedium2024-07-14$1,00029
Lack of bruteforce protection for TOTP 2FAAnalysed#1265709ValidAuthenticationMedium2023-03-26$75022
bypass of 2FAAnalysed#248656ValidAuthenticationHigh2018-07-29$75020

Status and severity are HackerOne's. “Access stated” is what the title says; “Access needed” and techniques come from CyberSIXT's analysis of the public report, where there is one, which can be wrong. Data as of 2026-11-15.