{"id":"CVE-2023-27891","aliases":["GHSA-r76w-3wwq-jv6v","PYSEC-2023-42"],"url":"https://o3.security/vulnerability/CVE-2023-27891","summary":"Insufficient Session Expiration in pretix","details":"rami.io pretix before 4.17.1 allows OAuth application authorization from a logged-out session. The fixed versions are 4.15.1, 4.16.1, and 4.17.1.","published":"2023-03-06T00:00:00Z","modified":"2026-07-15T02:08:17.897071404Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"pretix","fixedVersion":"4.17.1"},{"ecosystem":"PyPI","name":"pretix","fixedVersion":"4.16.1"},{"ecosystem":"PyPI","name":"pretix","fixedVersion":"4.15.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27891.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27891"},{"type":"ARTICLE","url":"https://pretix.eu/about/en/blog/20230306-release-4171/"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T02:08:17.897071404Z"}}