{"id":"CVE-2020-18701","aliases":["EUVD-2021-0112","GHSA-3m58-3m5q-53hq","PYSEC-2021-341"],"status":"published","title":"Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive...","description":"Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive information and/or gain privileges due to the application not invalidating a user's authentication token upon logout, which allows for replaying packets.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-14","score":0.02277,"percentile":0.83396,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2021-08-16T17:55:27Z","modified":"2026-06-17T02:59:25Z","affected":[{"source":"osv","ecosystem":"PyPI","package":"lin-cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.1a1","0.1.1a2","0.1.1a3","0.1.1a4","0.1.1a5","0.1.1a6","0.1.1a7","0.1.1a8","0.1.1b1","0.1.1b2","0.1.1b3","0.1.1b4","0.2.0b1","0.2.0b2","0.2.0b3","0.3.0a10","0.3.0a2","0.3.0a3","0.3.0a4","0.3.0a5","0.3.0a6","0.3.0a7","0.3.0a8","0.3.0a9","0.3.1","0.4.0","0.4.2","0.4.3","0.4.4","0.4.5","0.4.6","0.4.7","0.4.8","0.4.10","0.4.11","0.4.9"]}],"products":[{"vendor":"talelin","product":"lin-cms-flask"}],"references":[{"url":"https://github.com/TaleLin/lin-cms-flask/issues/30","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","report"]},{"url":"https://cwe.mitre.org/data/definitions/613.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-18701"},{"url":"https://github.com/advisories/GHSA-3m58-3m5q-53hq"}],"sources":{"cve":[{"id":"CVE-2020-18701","description":"Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive information and/or gain privileges due to the application not invalidating a user's authentication token upon logout, which allows for replaying packets.","status":"published","published":"2021-08-16T17:55:27Z","modified":"2024-08-04T14:08:29.092Z","updated_at":"2026-11-02T14:35:59.434367Z"}],"euvd":[{"id":"EUVD-2021-0112","description":"Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive information and/or gain privileges due to the application not invalidating a user's authentication token upon logout, which allows for replaying packets.","status":"published","published":"2021-08-16T17:55:27Z","modified":"2024-08-04T14:08:29Z","updated_at":"2026-11-03T03:07:26.397496Z"}],"ghsa":[{"id":"GHSA-3m58-3m5q-53hq","title":"Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive...","description":"Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive information and/or gain privileges due to the application not invalidating a user's authentication token upon logout, which allows for replaying packets.","status":"published","published":"2022-05-24T19:11:15Z","modified":"2023-01-27T05:03:20Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:42:13.302487Z"}],"nvd":[{"id":"CVE-2020-18701","description":"Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive information and/or gain privileges due to the application not invalidating a user's authentication token upon logout, which allows for replaying packets.","status":"published","published":"2021-08-16T18:15:07.097Z","modified":"2026-06-17T02:59:25.13Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:06:44.292752Z"}],"osv":[{"id":"PYSEC-2021-341","description":"Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive information and/or gain privileges due to the application not invalidating a user's authentication token upon logout, which allows for replaying packets.","status":"published","published":"2021-08-16T18:15:00Z","modified":"2025-10-09T07:55:08.337963Z","updated_at":"2026-11-02T15:52:52.682031Z"}]}}