Nextcloud guests app is a utility to create guest users which can only see files shared with them. In affected versions users could change the allowed list of apps, allowing them to use apps that were not intended to be used. It is recommended that the Guests app is upgraded to 2.4.1, 2.5.1 or 3.0.1. There are no known workarounds for this vulnerability.
The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Guests | Nextcloud | * | 2.4.1 (excluding) |
| Guests | Nextcloud | 2.5.0 (including) | 2.5.0 (including) |
| Guests | Nextcloud | 3.0.0 (including) | 3.0.0 (including) |