Superhuman (formerly Grammarly) · disclosed reports
Access Control
6 disclosed reports · $1,300 paid
Every dot is a report; the named ones are the most upvoted. Bright dots were paid a bounty. Reports open on HackerOne.
Open Superhuman (formerly Grammarly) on HackerOne- reports
- 6
- paid a bounty
- 2
Every one of the 6 is a mark on the map. Named now: 1 to 6, most upvoted first.
- Previously created sessions continue being valid after MFA activation
- Unauthenticated users can access all food.grammarly.io user's data
- Lack or Origin check leads to Cross-Site Websocket Hijacking (CSWSH)
- Permissive CORS policy trusting arbitrary extensions origin
- Unrestricted access to any "connected pack" on docs
- Can register any mobile number in MFA without current code.
paid a bounty
Zoom in on the map and the dots under the middle of it are named where they are.
Data as of 2026-11-14. CVE List through 2026-11-14 · EPSS of 2026-11-13 · CISA KEV checked 2026-11-14. Sources: the CVE List, CISA KEV, EPSS, NVD, nuclei templates and public bug bounty data.