Bug bounty reports15,219
Publicly disclosed HackerOne reports, with the platform's own outcome and severity.
| Report | Status | Weakness | Severity | Disclosed | Bounty | Votes |
|---|---|---|---|---|---|---|
| Stored XSS & SSRF in Lark DocsAnalysed#892049 | Valid | Server-Side Request Forgery | Critical | 2021-02-05 | $3,000 | 178 |
| Server Side Request ForgeryAnalysed#644238 | Valid | Server-Side Request Forgery | Critical | 2021-03-29 | – | 164 |
| Full read SSRF via Lark Docs `import as docs` featureAnalysed#1409727 | Valid | Server-Side Request Forgery | Critical | 2022-01-28 | $5,000 | 124 |
| Attacker is able to join any tenant on larksuite and view personal files/chats.Analysed#1363185 | Valid | Access Control | Critical | 2021-11-03 | – | 84 |
| SSRF with information disclosureAnalysed#810401 | Valid | Server-Side Request Forgery | Medium | 2021-04-27 | – | 64 |
| [Lark Android] Vulnerability in exported activity WebViewAnalysed#694053 | Valid | Cross-site Scripting | Medium | 2021-07-22 | $1,000 | 63 |
| [IDOR] Modify other team's reminders via reminderId parameterAnalysed#946323 | Valid | Insecure Direct Object Reference | Medium | 2022-01-13 | – | 40 |
| RPC Implementation allows unauthenticated remote callsAnalysed#876022 | Valid | Cross-site Scripting | High | 2021-02-10 | $1,250 | 39 |
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.