{"id":"CVE-2020-18698","aliases":["PYSEC-2021-339"],"url":"https://o3.security/vulnerability/CVE-2020-18698","summary":"Lin-CMS-Flask vulnerable to Improper Authentication","details":"Improper Authentication in Lin-CMS-Flask v0.1.1 allows remote attackers to launch brute force login attempts without restriction via the 'login' function in the component `app/api/cms/user.py`.","published":"2022-05-24T19:11:15Z","modified":"2026-06-10T18:45:05Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"PyPI","name":"lin-cms","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-18698"},{"type":"WEB","url":"https://github.com/TaleLin/lin-cms-flask/issues/27"},{"type":"WEB","url":"https://cwe.mitre.org/data/definitions/307.html"},{"type":"PACKAGE","url":"https://github.com/TaleLin/lin-cms-flask"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/lin-cms/PYSEC-2021-339.yaml"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-06-10T18:45:05Z"}}