zKup CMS 2.0 through 2.3 does not require administrative authentication for admin/configuration/modifier.php, which allows remote attackers to gain administrator privileges via a direct request, as demonstrated by adding a new administrator.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Zkup | Zkup | 2.0 (including) | 2.0 (including) |
| Zkup | Zkup | 2.01 (including) | 2.01 (including) |
| Zkup | Zkup | 2.02 (including) | 2.02 (including) |
| Zkup | Zkup | 2.03 (including) | 2.03 (including) |