Vulnerability in Shenzhen Shine Industrial Co., Ltd. Vitafit
CVE-2026-54376
VitaFit Android application (com.vt.vitafit) before 2.8.1.0 contains an insecure custom URI scheme vulnerability that allows a malicious application to intercept Fitbit login tokens by registering the same callback scheme (vitafit://vtio.cn). Attackers can capture the 30-day Fitbit authorization token with weight scope delivered in the callback URL to read, create, and delete the victim's weight and body-fat records via the Fitbit Body API.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/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
- Researcher Disclosure (technical-description, exploit)
- Google Play (product)
- VulnCheck Advisory: VitaFit Android < 2.8.1.0 Custom URI Scheme Token Hijacking (third-party-advisory)
Frequently asked questions
- What is CVE-2026-54376?
- CVE-2026-54376 is a high-severity vulnerability in Shenzhen Shine Industrial Co., Ltd. Vitafit, classified under CWE-926. CVSS score: 8.2/10. Published 2026-11-04.
- How severe is CVE-2026-54376?
- High severity. CVSS v3 base score is 8.2 out of 10.