| Package | Affected versions | Patched versions |
|---|---|---|
| nextcloud server | < 9.0.52 | 9.0.52 |
| owncloud | < 9.0.4 | 9.0.4 |
Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying restore privileges when restoring a file. The restore capability of Nextcloud/ownCloud was not verifying whether a user has only read-only access to a share. Thus a user with read-only access was able to restore old versions.
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