CVE-2026-66751: Sdelements Lets-Chat

Medium severity, CVSS 5.4. EPSS: 0.3% chance of exploitation in the next 30 days.

Let's Chat 0.3.0 through 0.4.8 contains an improper authorization vulnerability that allows any authenticated user to archive any room on the server by sending a DELETE request to the rooms handler without ownership verification. Attackers can enumerate room IDs via the rooms listing endpoint and permanently archive private or password-protected rooms they cannot access, with no application-level recovery path requiring direct database intervention to restore.

Affected products

• Sdelements Lets-Chat: from 0.3.0, up to and including 0.4.8

Published 2026-07-28. Last modified 2026-07-30.