Auth bypass in We-Promise Sure
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/we-promise/sure/issues/2099 (issue-tracking)
- hackmd.io/@hieuPenguinnn/we-promise-sure-transactions-bulk-update-missing-authz (technical-description, exploit)
- github.com/we-promise/sure/blob/a3bb5d991f9b96e335e9212b1a6324289577f143/app/co… (technical-description)
- github.com/we-promise/sure (product)
- www.vulncheck.com/advisories/sure-0.7.0-through-0.7.6-alpha.6-missing-authoriza… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-110772?
- CVE-2026-110772 is a medium-severity vulnerability in We-Promise Sure, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-10-14.
- How severe is CVE-2026-110772?
- Medium severity. CVSS v3 base score is 4.3 out of 10.