Auth bypass in Sunkaifei Flycms
CVE-2026-112294
FlyCms through commit edfdf724 contains a missing authorization vulnerability in ActionService.counter() that allows authenticated users to modify other users' content rows because checkRowOwner never verifies ownership. Any registered user can send requests to /ucenter/action/{modelCode}/{id}/counter or /ucenter/action/compose to add arbitrary deltas to numeric fields like price, stock, or points.
Vulnerability class: IDOR (Insecure Direct Object Reference)
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/sunkaifei/FlyCms/blob/edfdf724c3b944310f60c29aa755d03a00a75837/backe… (technical-description)
- github.com/sunkaifei/FlyCms/blob/edfdf724c3b944310f60c29aa755d03a00a75837/backe… (technical-description)
- github.com/sunkaifei/FlyCms/issues/19 (issue-tracking)
- www.vulncheck.com/advisories/flycms-through-commit-edfdf724-missing-authorizati… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-112294?
- CVE-2026-112294 is a medium-severity vulnerability in Sunkaifei Flycms, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-10-19.
- How severe is CVE-2026-112294?
- Medium severity. CVSS v3 base score is 4.3 out of 10.