| Package | Affected versions | Patched versions |
|---|---|---|
| calendar | = 6.0.0≥ 4.0.0, < 4.7.19≥ 5.0.0, < 5.5.6 | 4.7.195.5.6 |
Nextcloud Calendar is a calendar app for Nextcloud. Prior to 4.7.19, 5.5.6, and 6.0.1, the calendar app allowed blindly booking appointments with a squential ID without known the appointment token. This vulnerability is fixed in 4.7.19, 5.5.6, and 6.0.1.
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