Read the docs
TI-2026-85254 Aliases CVE-2026-54384GHSA-gx2r-4x57-mvww

Authentication bypass in VitaFit Cloud API login endpoint

Priority MEDIUM 41CWE-290Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-290.

Summary

VitaFit cloud API before 2026-10-30 contains an authentication bypass (CWE-290) in the POST /front/login/sns/ endpoint. A remote attacker who knows a victim's linked Google or Facebook account identifier can submit it without proof of ownership from the identity provider and obtain a full session for that account. The attacker can then read and modify the victim's profile and delete the account's authentication record, locking out the legitimate user. A public exploit link is listed in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

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.

Why it matters now

EPSS 0.00661 51st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed VitaFit (Shenzhen Shine Industrial Co., Ltd.): 2026-10-30

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Shenzhen Shine Industrial Co., Ltd.VitaFitbefore 2026-10-302026-10-30Patch availableCNA

Remediation

Update VitaFit cloud API to version 2026-10-30 or later, which fixes the flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

  • Fix · CNA VitaFit (Shenzhen Shine Industrial Co., Ltd.) Fixed in 2026-10-30

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Shenzhen Shine Industrial VitaFit 2026-10-30

    7 records Highest priority Priority MEDIUM 2 MEDIUM, 5 LOW

    Other records, highest priority first

    • TI-2026-85238 Broken access control in VitaFit cloud API exposes other users' filesPriority MEDIUM 40
    • TI-2026-85244 Misconfigured storage bucket in VitaFit Cloud API exposes user filesPriority LOW 38
    • TI-2026-85253 Excessive data exposure in VitaFit cloud API relation search endpointPriority LOW 31
    Show all 7 records →

Timeline

  1. 2026-11-04 Threatist record created from CVE-2026-54384
  2. 2026-11-05 Alias added: GHSA-gx2r-4x57-mvww

References

Exploit 1

Other 1

  • TI-2026-85238 Broken access control in VitaFit cloud API exposes other users' files CVSS 4.0CRITICAL 9.3
  • TI-2026-85244 Misconfigured storage bucket in VitaFit Cloud API exposes user files CVSS 4.0HIGH 8.7
  • TI-2026-85234 Hardcoded credentials in VitaFit Android expose third-party secrets CVSS 4.0HIGH 8.7
  • TI-2026-85232 Insecure TLS certificate validation in VitaFit Android app CVSS 4.0HIGH 8.7
  • TI-2026-85235 VitaFit Android Long-Lived Session Token Exposure CVSS 4.0HIGH 8.6
  • TI-2026-85236 Custom URI scheme flaw in VitaFit Android lets apps steal Fitbit tokens CVSS 4.0HIGH 8.2
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences