The Community Edition version 9.0 of OS4EDs openSIS Classic has a broken access control vulnerability in the database backup functionality. Whenever an admin generates a database backup, the backup is stored in the web root while the file name has a format of opensisBackup.sql (e.g. opensisBackup07-20-2023.sql), i.e. can easily be guessed. This file can be accessed by any unauthenticated actor and contains a dump of the whole database including password hashes.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Opensis | Os4ed | 9.0 (including) | 9.0 (including) |