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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:Access Control
Clear
Year
Bounty paid5
Access stated
  • No account0
  • A user account0
  • Admin or privileged0
Access needed:No account
Technique
Clear filters9 of 15,219 reports
Disclosed bug bounty reports
ReportStatusWeaknessSeverityDisclosedBountyVotes
ID4me feature of OpenID connect app available even when disabledAnalysed#2376929ValidAccess ControlMedium2024-05-30–66
Profile of disabled user stays accessibleAnalysed#1675014ValidAccess ControlLow2022-11-26$10027
Error in Booking an appointment reveals the full path of the websiteAnalysed#1841408ValidAccess ControlLow2023-06-18–24
"Secure View" aka "Hide Download" can be bypassed easilyAnalysed#788257ValidAccess ControlHigh2020-04-10–22
Missing rate limiting on password reset functionality allows to send lot of emailsAnalysed#1691195ValidAccess ControlLow2023-03-05$10017
xmlrpc.php is enabled - NextcloudAnalysed#458696ValidAccess ControlMedium2020-03-01–17
File drop public link can also be converted to federated shareAnalysed#1167929ValidAccess ControlLow2021-06-10$50015
Virtual Data Room / Hide download on collabora is easy to bypassAnalysed#1194606ValidAccess ControlHigh2021-08-07$15014
Combination of content provider allows private data disclosureAnalysed#534541ValidAccess ControlLow2019-07-26$10014

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.