CVE-2026-110772

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.

CVSS 4.0

5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 18% of CVEs (scores of 2026-10-25)

CWE

CWE-862

Published

2026-10-14

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

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

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