{"id":"CVE-2026-54384","title":"VitaFit Cloud API Authentication Bypass via POST /front/login/sns/","summary":"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 /f…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-290"],"vendor":"Shenzhen Shine Industrial Co., Ltd.","product":"VitaFit","affected":["VitaFit < 2026-10-30"],"published":"2026-11-04","updated":"2026-11-04","sourceUpdated":"2026-11-04T22:23:39.111Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-54384","references":[{"url":"https://github.com/je-lv/vitafit-security-research","label":"Researcher Disclosure"},{"url":"https://play.google.com/store/apps/details?id=com.vt.vitafit","label":"Google Play"},{"url":"https://www.vulncheck.com/advisories/vitafit-cloud-api-authentication-bypass-via-post-front-login-sns","label":"VulnCheck Advisory: VitaFit Cloud API Authentication Bypass via POST /front/login/sns/"}],"tags":["cve.org"],"ingestedAt":"2026-11-05T21:36:00.642Z","slug":"CVE-2026-54384","body":"## Overview\n\nVitaFit 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.\n\n## Affected\n\n- `VitaFit < 2026-10-30`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}