{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T16:51:28.024","vulnerabilities":[{"cve":{"id":"CVE-2021-20835","sourceIdentifier":"vultures@jpcert.or.jp","published":"2021-11-24T16:15:12.970","lastModified":"2024-11-21T05:47:15.110","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Improper authorization in handler for custom URL scheme vulnerability in Android App 'Mercari (Merpay) - Marketplace and Mobile Payments App' (Japan version) versions prior to 4.49.1 allows a remote attacker to lead a user to access an arbitrary website and the website launches an arbitrary Activity of the app via the vulnerable App, which may result in Mercari account's access token being obtained."},{"lang":"es","value":"Una autorización inapropiada en el manejador para la vulnerabilidad del esquema de URL personalizado en la aplicación Android \"Mercari (Merpay) - Marketplace and Mobile Payments App\" (versión de Japón) versiones anteriores a la 4.49.1, permite a un atacante remoto conllevar a un usuario a acceder a un sitio web arbitrario y el sitio web lanza una actividad arbitraria de la aplicación por medio de la aplicación vulnerable, lo que puede resultar en una obtención del token de acceso de la cuenta Mercari"}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:N/A:N","baseScore":5.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE"},"baseSeverity":"MEDIUM","exploitabilityScore":10.0,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-862"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:mercari:mercari:*:*:*:*:*:android:*:*","versionEndExcluding":"4.49.1","matchCriteriaId":"AD3E0EAD-AADA-4EFF-9663-CD638377A02F"}]}]}],"references":[{"url":"https://jvn.jp/en/jp/JVN49465877/index.html","source":"vultures@jpcert.or.jp","tags":["Third Party Advisory"]},{"url":"https://jvn.jp/en/jp/JVN49465877/index.html","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]}]}}]}