{"cve":"CVE-2015-9284","nvd":{"published":"2019-04-26T15:29:00.267","modified":"2026-06-17T00:36:12.680","status":"Modified","description":"The request phase of the OmniAuth Ruby gem (1.9.1 and earlier) is vulnerable to Cross-Site Request Forgery when used as part of the Ruby on Rails framework, allowing accounts to be connected without user intent, user interaction, or feedback to the user. This permits a secondary account to be able to sign into the web application as the primary account.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-352"],"references":["https://github.com/omniauth/omniauth-rails/pull/1","https://github.com/omniauth/omniauth/pull/809","https://github.com/omniauth/omniauth/wiki/Resolving-CVE-2015-9284","https://www.openwall.com/lists/oss-security/2015/05/26/11","https://github.com/omniauth/omniauth-rails/pull/1"],"products":["omniauth:omniauth"],"source":"nvd","synced_at":"2026-10-19T20:56:19.218283075+00:00"},"epss":{"cve":"CVE-2015-9284","score":0.01525,"percentile":0.74681,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-ww4x-rwq6-qpgf","url":"https://osv.dev/vulnerability/GHSA-ww4x-rwq6-qpgf","summary":"OmniAuth Ruby gem Cross-site Request Forgery in request phase","modified":"2024-02-16T08:21:54.381778Z","packages":[{"ecosystem":"RubyGems","name":"omniauth","purl":"pkg:gem/omniauth","ranges":["<2.0.0"],"fixed":["2.0.0"]}]}],"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."]}