medium5.3
CVE-2023-49278
Brute force exploit can be used to collect valid usernames
Impact
#### Impact A brute force exploit that can be used to collect valid usernames is possible. #### Explanation of the vulnerability It's a brute force exploit that can be used to collect valid usernames by using the “forgot password” function when trying to log into the Backoffice. If the username/email is known, it is easier to find the corresponding password. If an email address that was already used and registered by a user, is provided as an input, the server internal processing time takes longer. If the email address does not exist in the database of the registered users, the server would respond immediately.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| nuget | Umbraco.CMS | >= 8.0.0, < 8.18.10 | 8.18.10 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Umbraco | Umbraco Cms | from 8.0.0 before 8.18.10 from 10.0.0 before 10.8.1 from 12.0.0 before 12.3.4 |