Auth bypass in Shenzhen Shine Industrial Co., Ltd. Vitafit
CVE-2026-54377
VitaFit cloud API before 2026-10-30 contained an insecure direct object reference vulnerability that allows authenticated attackers to access another user's data by supplying a different user_id or profile_id to endpoints such as GET /front/profile/{profile_id}/report/ and GET /front/profile/{profile_id}/body_index_per_day/. Attackers can leverage predictable user_id and profile_id relationships combined with an account-enumeration weakness to read another account's email address, profile, body-composition report, and measurement history at scale.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (8.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
The 30-day trend appears once there are two daily scores.
Affected products
Weakness classification (CWE)
References
- github.com/je-lv/vitafit-security-research (technical-description, exploit)
- play.google.com/store/apps/details (product)
- www.vulncheck.com/advisories/vitafit-cloud-api-idor-via-profile-id-endpoints (third-party-advisory)
Frequently asked questions
- What is CVE-2026-54377?
- CVE-2026-54377 is a medium-severity vulnerability in Shenzhen Shine Industrial Co., Ltd. Vitafit, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-11-04.
- How severe is CVE-2026-54377?
- Medium severity. CVSS v3 base score is 6.5 out of 10.