{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54376","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-06-12T20:20:02.949Z","datePublished":"2026-11-04T22:01:47.396Z","dateUpdated":"2026-11-04T22:01:47.396Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-11-04T22:01:47.396Z"},"title":"VitaFit Android < 2.8.1.0 Custom URI Scheme Token Hijacking","descriptions":[{"lang":"en","value":"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."}],"datePublic":"2026-11-03T00:00:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","description":"Improper Export of Android Application Components","cweId":"CWE-926","type":"CWE"}]}],"affected":[{"defaultStatus":"unaffected","vendor":"Shenzhen Shine Industrial Co., Ltd.","product":"VitaFit","versions":[{"status":"affected","version":"0","versionType":"custom","lessThan":"2.8.1.0"}]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"ACTIVE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","subIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.2,"vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE","version":"3.1","baseSeverity":"HIGH","baseScore":8.2,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"}}],"references":[{"url":"https://github.com/je-lv/vitafit-security-research","name":"Researcher Disclosure","tags":["technical-description","exploit"]},{"url":"https://play.google.com/store/apps/details?id=com.vt.vitafit","name":"Google Play","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/vitafit-android-custom-uri-scheme-token-hijacking","name":"VulnCheck Advisory: VitaFit Android < 2.8.1.0 Custom URI Scheme Token Hijacking","tags":["third-party-advisory"]}],"credits":[{"lang":"en","value":"Jose Lomeli","type":"finder"}],"x_generator":{"engine":"vulncheck"}}}}