{"cve":"CVE-2023-27891","nvd":{"published":"2023-03-06T23:15:11.537","modified":"2026-06-17T05:46:02.420","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-613"],"references":["https://pretix.eu/about/en/blog/20230306-release-4171/","https://pretix.eu/about/en/blog/20230306-release-4171/"],"products":["rami:pretix"],"source":"nvd","synced_at":"2026-10-19T21:37:41.955480748+00:00"},"epss":{"cve":"CVE-2023-27891","score":0.00628,"percentile":0.50107,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-r76w-3wwq-jv6v","url":"https://osv.dev/vulnerability/GHSA-r76w-3wwq-jv6v","summary":"Insufficient Session Expiration in pretix","modified":"2024-10-21T20:00:50.948041Z","packages":[{"ecosystem":"PyPI","name":"pretix","purl":"pkg:pypi/pretix","ranges":[">=4.17.0 <4.17.1"],"fixed":["4.17.1"]},{"ecosystem":"PyPI","name":"pretix","purl":"pkg:pypi/pretix","ranges":[">=4.16.0 <4.16.1"],"fixed":["4.16.1"]},{"ecosystem":"PyPI","name":"pretix","purl":"pkg:pypi/pretix","ranges":["<4.15.1"],"fixed":["4.15.1"]}]},{"id":"PYSEC-2023-42","url":"https://osv.dev/vulnerability/PYSEC-2023-42","summary":"","modified":"2026-06-10T17:01:35.916564391Z","packages":[{"ecosystem":"PyPI","name":"pretix","purl":"pkg:pypi/pretix","ranges":["<4.17.1"],"fixed":["4.17.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}