CVE-2026-54384

CRITICAL 9.8

VitaFit Cloud API Authentication Bypass via POST /front/login/sns/

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

VitaFit cloud API before 2026-10-30 contained an authentication bypass vulnerability that allows remote attackers to obtain a full session for a victim's account by submitting a linked Google or Facebook account identifier to the POST /front/login/sns/ endpoint without providing proof of ownership from the identity provider. Attackers can forge a login using an identifier exposed through account enumeration to read and modify the victim's profile and delete the account's authentication record, preventing the legitimate user from logging in.

CWE	CWE-290
Vendor	shenzhen shine industrial co., ltd.
Product	vitafit
Published	Nov 4, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Shenzhen Shine Industrial Co., Ltd. / VitaFit

0 < 2026-10-30

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/je-lv/vitafit-security-research play.google.com: https://play.google.com/store/apps/details?id=com.vt.vitafit vulncheck.com: https://www.vulncheck.com/advisories/vitafit-cloud-api-authentication-bypass-via-post-front-login-sns

Credits

Jose Lomeli