Description
Sure 0.7.0 through 0.7.6-alpha.6 contains a missing authorization vulnerability in Transactions::BulkUpdatesController#create that allows family members to bypass account sharing permissions. Authenticated members with read_only or no share can submit arbitrary entry_ids to modify other members' transaction dates, names, notes, categories, merchants and tags, corrupting budgets and reports.
Metrics
CVSS 3.1 4.3/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| we-promise | sure | >= 0.7.0, <= 0.7.6-alpha.6 |
References
- https://github.com/we-promise/sure
- https://github.com/we-promise/sure/blob/a3bb5d991f9b96e335e9212b1a6324289577f143/app/controllers/transactions/bulk_updates_controller.rb#L5-L13
- https://github.com/we-promise/sure/issues/2099
- https://hackmd.io/@hieuPenguinnn/we-promise-sure-transactions-bulk-update-missing-authz
- https://www.vulncheck.com/advisories/sure-0.7.0-through-0.7.6-alpha.6-missing-authorization-via-transaction-bulk-update
Timeline
- Published
- Oct 14, 2026
- Last modified
- Oct 15, 2026
- NVD status
- Deferred