Nextcloud Deck before 1.0.2 suffers from an insecure direct object reference (IDOR) vulnerability that permits users with a duplicate user identifier to access deck data of a previous deleted user.
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
Link | Tags |
---|---|
https://hackerone.com/reports/882258 | third party advisory exploit |
https://nextcloud.com/security/advisory/?id=NC-SA-2021-007 | broken link |
https://github.com/nextcloud/deck/pull/1976 | third party advisory patch |