An issue was discovered in Joomla! through 3.9.19. Missing validation checks on the usergroups table object can result in a broken site configuration.
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Joomla! | Joomla | 2.5.0 (including) | 3.9.19 (including) |