VitaFit cloud API: Authentication bypass (CVE-2026-54384)
VitaFit cloud API before 2026-10-30 contained an authentication bypass vulnerability allowing 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.
CVE search metadata
CVE search record: CVE-2026-54384. Severity: critical. CVSS: 9.8. KEV: no. Brief: VitaFit cloud API: Authentication bypass (CVE-2026-54384). Brief link: https://feed.craftedsignal.io/briefs/2026-11-vitafit-auth-bypass/
Triage facts
Revision 2- Evidence
- Unknown
- Severity
- Critical
- Sources
- 2 public sources
- Freshness
- Revision 2Nov 5, 00:22 UTC
- Vulnerabilities
- 1 CVE
- Source quality
- A2Roughly even chance
Revision history 1 entry · Revision 2
- Revision 2
poc_available
Changed: affected_vendors, claim_state, has_poc, lastmod, poc_references, references, updates
Sources: 1
VitaFit cloud API before 2026-10-30 contained an authentication bypass vulnerability. Remote attackers can 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 to read and modify the victim's profile and delete the account's authentication record, preventing the legitimate user from logging in.