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Bug bounty reports15,219

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

Program:LinkedIn
Status
Severity:Medium
Clear
Weakness
Year
Bounty paid0
Access stated
  • No account0
  • A user account0
  • Admin or privileged0
Access needed
Technique
Clear filters25 of 15,219 reports
Disclosed bug bounty reports
ReportStatusWeaknessSeverityDisclosedBountyVotes
The software does not implement sufficient measures to prevent multiple failed authentication attempts within in a short time frame, making it more su#1591504N/AAuthenticationMedium2022-06-15–3
Campaign Account Balance and History Disclosed in API Response#1587374ValidInsecure Direct Object ReferenceMedium2022-11-30–21
[ Continuation Report from #1814842 ] Can create articles using other users' NewsLetters#1818969ValidInsecure Direct Object ReferenceMedium2023-05-15–23
“See who’s interested in working for your company” - security issue#1945417ValidInformation DisclosureMedium2023-06-21–28
An Attacker Can Flag Draft Job Posts And Can Disclose The Draft Job Posts Details [ Similar to #1581528 Resolved Report]Analysed#1675674ValidInput Validation and LogicMedium2023-08-24–34
Deny Admin from Editing LinkedIn Company Page using Gen Form Visibility via POST /voyager/api/voyagerOrganizationDashCompanies/{id}Analysed#2081744ValidAccess ControlMedium2023-10-19–34
Delete any LinkedIn comment on learning API of other usersAnalysed#1801527ValidAccess ControlMedium2023-05-12–41
bypass two-factor authentication.Analysed#1842183ValidAuthenticationMedium2023-08-01–41
CSRF that makes any user send invitations to the attacker by simply clicking on a link.Analysed#1961163ValidCross-Site Request ForgeryMedium2023-12-06–41
Anyone can view the results of linkedin skill test -if failed to earn a badge or if the badge earned is kept private: both cases results can be viewedAnalysed#1837309ValidInsecure Direct Object ReferenceMedium2023-05-17–43
Attackers do not need to Pay for a Subscription to get the `Discussion Group URL` in `Paid Learning`Analysed#1813450ValidInsecure Direct Object ReferenceMedium2023-05-12–44
Privilege Escalation - "Analyst" Role Can View Email Domains of a Company - [GET /voyager/api/voyagerOrganizationDashEmailDomainMappings]Analysed#1572591ValidAccess ControlMedium2022-08-26–48
IDOR - Delete technical skill assessment result & Gained Badges result of any userAnalysed#1592587ValidNo weakness recordedMedium2022-10-05–48
CSRF that makes any linkedin user follow attacker controlled accounts by simply clicking https://www.linkedin.com/comm/mynetwork/discovery-see-all/*Analysed#1964211ValidCross-Site Request ForgeryMedium2023-12-06–53
Blocking a company page admin prevents him from delete paid media admin or edit his rolesAnalysed#2339192ValidAccess ControlMedium2026-03-05–55
Users can access exams in course without having to subscribe to PREMIUMAnalysed#1892888ValidAccess ControlMedium2024-01-10–64
Can access the job name, creator name and can report any draft/under review/rejected jobAnalysed#1581528ValidInsecure Direct Object ReferenceMedium2022-07-20–65
Employee-only Area BypassAnalysed#2299571ValidAccess ControlMedium2024-02-19–77
Access to Deactivated LinkedIn Company Pages via Competitor Analytics APIAnalysed#3604288ValidInsecure Direct Object ReferenceMedium2026-03-24–77
Entire database of emails exposed through URN injectionAnalysed#1806939ValidCommand and Code InjectionMedium2023-05-22–79
Forced OAuth authorization using button ID in hash and holding spaceAnalysed#2649615ValidAuthenticationMedium2024-12-17–79
Information disclosure by sending a GIFAnalysed#1801427ValidInput Validation and LogicMedium2023-04-28–84
IDOR to make someone attend or leave an eventAnalysed#1734639ValidInsecure Direct Object ReferenceMedium2026-03-06–87
IDOR allows an attacker to delete anyone's featured photo.Analysed#1608735ValidInsecure Direct Object ReferenceMedium2023-08-24–99
Improper Access Control - Access to "Active Hiring" (Premium feature) filter resultsAnalysed#3235855ValidAccess ControlMedium2026-02-03–100

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 (2,942 analysed so far), which can be wrong. Data as of 2026-11-15.