Bug bounty program
LE
lemlist
Most upvoted reports14
All reports| Report | Weakness | Disclosed | Bounty | Votes |
|---|---|---|---|---|
| Authentication Bypass in Subscription Management EndpointAnalysed#3417162 | Insecure Direct Object Reference | 2025-11-17 | – | 68 |
| Unauthorized Password Reset Allows Account Takeover Across Tenant BoundariesAnalysed#3378635 | No weakness recorded | 2025-11-07 | – | 65 |
| Authentication Token Theft via Open Redirect in Callback URL ParameterAnalysed#3419636 | Authentication | 2025-11-14 | – | 60 |
| stored xss in app.lemlist.comAnalysed#919859 | Cross-site Scripting | 2020-07-21 | – | 26 |
| Unrestricted File Upload on https://app.lemlist.comAnalysed#722919 | File and Path Handling | 2020-04-01 | – | 24 |
| SSRF in img.lemlist.com that leads to Localhost Port ScanningAnalysed#783392 | Server-Side Request Forgery | 2020-05-28 | – | 23 |
| Stored XSS at [ █████ ] in " LINKEDIN URL" Field.#932557 | Cross-site Scripting | 2020-07-24 | – | 18 |
| [app.lemlist.com] Improper handling of payment lead to bypass payment#1420697 | Input Validation and Logic | 2022-05-17 | – | 18 |
| Security misconfiguration#1486327 | Misconfiguration and Insecure Design | 2022-05-16 | – | 15 |
| Clickjacking at app.lemlist.com#1574017 | Misconfiguration and Insecure Design | 2022-05-20 | – | 13 |
Subdomains91
| Name | Scope | First seen |
|---|---|---|
| db.lemlist.comdata | Not in the scope | 2026-11-14 |
| files.lemlist.comdata | Not in the scope | 2026-11-14 |
| backup.lemlist.comdata | Not in the scope | 2026-11-14 |
| files.staging1.lemlist.comdata, staging | Not in the scope | 2026-11-14 |
1 names are covered by the program's own scope; 0 were first seen this week. Names come from ProjectDiscovery's public Chaos dataset (passive sources: certificate logs, DNS and other public data), matched to the program by its listing and its own domain scope. A name being in a dataset is not permission to test it: only what the program's own scope says is in scope, and its policy decides. CyberSIXT does not resolve, probe or scan these names. Tags come from the name alone. Source: ProjectDiscovery Chaos. Subdomains on the Atlas, or search the subdomains of every program.
A name in a dataset is not permission to test it: the program's own scope and rules decide. Data as of 2026-11-15.