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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:Server-Side Request Forgery
Clear
Year
Bounty paid1
Access stated
Access needed:No account
Technique
Clear filters2 of 15,219 reports
Disclosed bug bounty reports
ReportStatusWeaknessSeverityDisclosedBountyVotes
Unauthenticated SSRF in 3rd party module "cerdic/csstidy"Analysed#1595006ValidServer-Side Request ForgeryMedium2022-09-03$25017
Unauthenticated blind SSRF in Circles signature verification bypasses Nextcloud local-address protectionsAnalysed#3303283ValidServer-Side Request ForgeryMedium2026-09-17–15

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.