{"id":"CVE-2021-20733","aliases":["EUVD-2021-8147","GHSA-j2c9-qfcw-93gr"],"status":"published","title":"Improper authorization in handler for custom URL scheme vulnerability in ????????? (asken diet)...","description":"Improper authorization in handler for custom URL scheme vulnerability in あすけんダイエット (asken diet) for Android versions from v.3.0.0 to v.4.2.x allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00821,"percentile":0.57599,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-601","CWE-862"],"published":"2021-06-22T01:35:45Z","modified":"2026-06-17T03:34:20Z","products":[{"vendor":"asken","product":"asken"},{"vendor":"asken inc.","product":"あすけんダイエット (asken diet) for android"}],"references":[{"url":"https://www.asken.jp/s/login/?to=/information","tags":["x_refsource_MISC","x_transferred","Permissions Required","Vendor Advisory"]},{"url":"https://jvn.jp/en/jp/JVN38034268/index.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20733"},{"url":"https://github.com/advisories/GHSA-j2c9-qfcw-93gr"}],"sources":{"cve":[{"id":"CVE-2021-20733","description":"Improper authorization in handler for custom URL scheme vulnerability in あすけんダイエット (asken diet) for Android versions from v.3.0.0 to v.4.2.x allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.","status":"published","published":"2021-06-22T01:35:45Z","modified":"2024-08-03T17:53:21.84Z","updated_at":"2026-11-02T14:32:55.19484Z"}],"euvd":[{"id":"EUVD-2021-8147","description":"Improper authorization in handler for custom URL scheme vulnerability in あすけんダイエット (asken diet) for Android versions from v.3.0.0 to v.4.2.x allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.","status":"published","published":"2021-06-22T01:35:45Z","modified":"2024-08-03T17:53:21Z","updated_at":"2026-11-03T03:25:08.33351Z"}],"ghsa":[{"id":"GHSA-j2c9-qfcw-93gr","title":"Improper authorization in handler for custom URL scheme vulnerability in ????????? (asken diet)...","description":"Improper authorization in handler for custom URL scheme vulnerability in ????????? (asken diet) for Android versions from v.3.0.0 to v.4.2.x allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.","status":"published","published":"2022-05-24T19:05:58Z","modified":"2023-02-01T05:07:16Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-601","CWE-862"],"updated_at":"2026-11-02T14:50:31.141675Z"}],"nvd":[{"id":"CVE-2021-20733","description":"Improper authorization in handler for custom URL scheme vulnerability in あすけんダイエット (asken diet) for Android versions from v.3.0.0 to v.4.2.x allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.","status":"published","published":"2021-06-22T02:15:07.133Z","modified":"2026-06-17T03:34:20.353Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:06:54.892562Z"}]}}