CVE-2015-9284
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…
- 8.8HighCVSS base score
- 1.5%Exploitation in 30 daysEPSS · top 25% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By hackerone
- 17 days later
· 17 days later
Published
- 5 years later
· 5 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.5% · top 25% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
omniauth ruby gem
- affected All versions
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- RubyGemsomniauthGHSA-ww4x-rwq6-qpgf (opens in a new tab)
References
4
- https://github.com/omniauth/omniauth/pull/809 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/omniauth/omniauth-rails/pull/1 (opens in a new tab)x_refsource_MISCx_transferred
- [oss-security] 20150526 CVE Request: CSRF vulnerability in OmniAuth request phase (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://github.com/omniauth/omniauth/wiki/Resolving-CVE-2015-9284 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2019-0482 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-ww4x-rwq6-qpgf (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2015-9284)Record last updated .