{"id":"CVE-2021-20791","aliases":["EUVD-2021-8203","GHSA-9435-7c72-6m39"],"status":"published","title":"Improper access control vulnerability in RevoWorks Browser 2.1.230 and earlier allows an attacker...","description":"Improper access control vulnerability in RevoWorks Browser 2.1.230 and earlier allows an attacker to bypass access restriction and to exchange unauthorized files between the local environment and the isolated environment or settings of the web browser via unspecified vectors.","severity":{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00842,"percentile":0.58407,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269"],"published":"2021-09-17T01:40:25Z","modified":"2026-06-17T03:34:27Z","products":[{"vendor":"jscom","product":"revoworks_browser"},{"vendor":"j’s communication co., ltd.","product":"revoworks browser"}],"references":[{"url":"https://jscom.jp/news-20210910_2/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://jvn.jp/en/jp/JVN81658818/index.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20791"},{"url":"https://github.com/advisories/GHSA-9435-7c72-6m39"}],"sources":{"cve":[{"id":"CVE-2021-20791","description":"Improper access control vulnerability in RevoWorks Browser 2.1.230 and earlier allows an attacker to bypass access restriction and to exchange unauthorized files between the local environment and the isolated environment or settings of the web browser via unspecified vectors.","status":"published","published":"2021-09-17T01:40:25Z","modified":"2024-08-03T17:53:22.425Z","updated_at":"2026-11-02T14:32:55.564736Z"}],"euvd":[{"id":"EUVD-2021-8203","description":"Improper access control vulnerability in RevoWorks Browser 2.1.230 and earlier allows an attacker to bypass access restriction and to exchange unauthorized files between the local environment and the isolated environment or settings of the web browser via unspecified vectors.","status":"published","published":"2021-09-17T01:40:25Z","modified":"2024-08-03T17:53:22Z","updated_at":"2026-11-03T03:25:07.874589Z"}],"ghsa":[{"id":"GHSA-9435-7c72-6m39","title":"Improper access control vulnerability in RevoWorks Browser 2.1.230 and earlier allows an attacker...","description":"Improper access control vulnerability in RevoWorks Browser 2.1.230 and earlier allows an attacker to bypass access restriction and to exchange unauthorized files between the local environment and the isolated environment or settings of the web browser via unspecified vectors.","status":"published","published":"2022-05-24T19:14:59Z","modified":"2023-01-27T05:03:57Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N","level":"critical"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:42:21.502511Z"}],"nvd":[{"id":"CVE-2021-20791","description":"Improper access control vulnerability in RevoWorks Browser 2.1.230 and earlier allows an attacker to bypass access restriction and to exchange unauthorized files between the local environment and the isolated environment or settings of the web browser via unspecified vectors.","status":"published","published":"2021-09-17T02:15:06.93Z","modified":"2026-06-17T03:34:27.567Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N","level":"critical","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:58.933037Z"}]}}