CVE-2018-15121 json
Auth0-ASPNET and Auth0-ASPNET-Owin vulnerable to Cross-Site Request Forgery
published 2018-08-29 8 y ago modified 2026-06-17 4 mo ago also GHSA-mmhr-3jr7-qj2p , EUVD-2022-4591
- cvss
- 8.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
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 leaves applications vulnerable to CSRF attacks during authentication and authorization operations.
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
| GitHub | 3.0 | 8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | Auth0-ASPNET-Owin | <=2.3.2 |
no fix listed |
| nuget | auth0-aspnet | <=2.1.1 |
no fix listed |
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
References
-
auth0.com
/docs/security/bulletins/cve-2018-15121
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2018-15121
advisory
-
github.com
/auth0/auth0-aspnet-owin
package
-
nuget.org
/packages/Auth0-ASPNET-Owin
web
Sources
- CVE List CVE-2018-15121
- GitHub Advisory GHSA-mmhr-3jr7-qj2p
- NVD CVE-2018-15121
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