Vulnerability · Published Oct 14, 2026 · Assigned by VulnCheck

CVE-2026-110772Sure 0.7.0 through 0.7.6-alpha.6 Missing Authorization via Transaction Bulk Update

Medium 4.3

In plain English

A medium-severity missing authorization in sure from we-promise. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.3%top 81.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
we-promise	sure	0.7.0 – through 0.7.6-alpha.6

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References

https://github.com/we-promise/sure/issues/2099 issue-tracking
https://hackmd.io/@hieuPenguinnn/we-promise-sure-transactions-bulk-update-missing-authz technical-description, exploit
https://github.com/we-promise/sure/blob/a3bb5d991f9b96e335e9212b1a6324289577f143/app/controllers/transactions/bulk_updates_controller.rb#L5-L13 technical-description
https://github.com/we-promise/sure product
VulnCheck Advisory: Sure 0.7.0 through 0.7.6-alpha.6 Missing Authorization via Transaction Bulk Update third-party-advisory