CVE-2026-66750

CVE-2026-66750 affects Let’s Chat versions 0.3.0–0.4.8. The vulnerability arises in the file retrieval route (GET /files/:id/:name) where access control only enforces login, ignoring room membership checks (Room.canJoin). As a result, authenticated attackers can download file attachments from pri...

CVE-2026-66750 Let's Chat 0.3.0 - 0.4.8 Broken Access Control File Disclosure via GET /files route

Let's Chat 0.3.0 through 0.4.8 contains a broken access control vulnerability that allows authenticated attackers to download file attachments from private and password-protected rooms they are not a member of by exploiting missing room membership checks in the file retrieval route. Attackers can...