{"id":"CVE-2018-15121","aliases":[],"url":"https://o3.security/vulnerability/CVE-2018-15121","summary":"An issue was discovered in Auth0 auth0-aspnet and auth0-aspnet-owin. Affected packages do not use or validate the state parameter of the OAuth 2.0 and OpenID Connect protocols. This…","details":"An issue was discovered in Auth0 auth0-aspnet and auth0-aspnet-owin. Affected packages do not use or validate the state parameter of the OAuth 2.0 and OpenID Connect protocols. This leaves applications vulnerable to CSRF attacks during authentication and authorization operations.","published":"2018-08-29T03:29:00.243","modified":"2026-06-17T01:42:04.817","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://auth0.com/docs/security/bulletins/cve-2018-15121"},{"type":"ADVISORY","url":"https://auth0.com/docs/security/bulletins/cve-2018-15121"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-06-17T01:42:04.817"}}