{"id":"CVE-2025-31691","summary":"OAuth2 Server - Moderately critical - Access bypass - SA-CONTRIB-2025-020","details":"Missing Authorization vulnerability in Drupal OAuth2 Server allows Forceful Browsing.This issue affects OAuth2 Server: from 0.0.0 before 2.1.0.","aliases":["DRUPAL-CONTRIB-2025-020","GHSA-4f8q-mwgc-3mwc"],"modified":"2026-08-12T03:51:18.619554626Z","published":"2025-03-31T21:49:42.796Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/31xxx/CVE-2025-31691.json","cna_assigner":"drupal","cwe_ids":["CWE-862"]},"references":[{"type":"WEB","url":"https://git.drupalcode.org/project/oauth2_server"},{"type":"WEB","url":"https://www.drupal.org/project/oauth2_server"},{"type":"WEB","url":"https://www.drupal.org/sa-contrib-2025-020"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/31xxx/CVE-2025-31691.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-31691"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.drupalcode.org/project/oauth2_server","events":[{"introduced":"0"},{"fixed":"7c1c36a40d2554fe2dc66a7e0062e36a5dd625ce"}],"database_specific":{"extracted_events":[{"introduced":"0.0.0"},{"fixed":"2.1.0"}],"source":"AFFECTED_FIELD"}}],"versions":["2.0.0-beta6","2.0.0-beta5","2.0.0-beta4","2.0.0-beta3","8.x-1.0-beta3","2.0.0-beta2","2.0.0-beta1","8.x-1.0-beta2","8.x-1.0-beta1","7.x-1.3","7.x-1.2","7.x-1.1","7.x-1.0","7.x-1.0-rc3","7.x-1.0-rc2","7.x-1.0-rc1","7.x-1.0-beta2","7.x-1.0-beta1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-31691.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}