CVE-2025-9485CRITICAL 9.8EPSS p42.7%
CVE-2025-9485CVE-2025-9485
Description
The OAuth Single Sign On – SSO (OAuth Client) plugin for WordPress is vulnerable to Improper Verification of Cryptographic Signature in versions up to, and including, 6.26.12. This is due to the plugin performing unsafe JWT token processing without verification or validation in the `get_resource_owner_from_id_token` function. This makes it possible for unauthenticated attackers to bypass authentication and gain access to any existing user account - including administrators in certain configurations - or to create arbitrary subscriber-level accounts.
Scoring
| CVSS 3.1 | 9.8 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 0.57% probability of exploitation · percentile 42.7% · 2026-06-19T12:03:05Z |
| Published | 2025-10-04 |
| Last modified | 2026-04-15 |
Underlying weaknesses· 1
References
- https://plugins.trac.wordpress.org/browser/miniorange-login-with-eve-online-google-facebook/tags/6.26.12/class-mooauth-widget.php#L577
- https://plugins.trac.wordpress.org/changeset/3360768/miniorange-login-with-eve-online-google-facebook
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d2448afc-70d1-4dd5-b73b-62d182ee9a8a?source=cve
1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Improper Verification of Cryptographic Signaturecwe-347 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.