OAuth Single Sign On – SSO (OAuth Client) <= 6.26.12 - Authentication Bypass via get_resource_owner_from_id_token()
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-347.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| miniOrange | OAuth Single Sign On – SSO (OAuth Client) | up to 6.26.12 | — | No fix listed | CNA |
- OAuth Single Sign On – SSO (OAuth Client) VendorminiOrange Affected up to 6.26.12 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-9485
- 2026-10-03 Alias added: GHSA-44hx-mv5h-wj6c
References
Other 3
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d2448afc-70d1-4dd5-b73b-62d182ee9a8a?source=cve
- 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
More miniOrange vulnerabilities
- TI-2023-05558 Web3 – Crypto wallet Login & NFT token gating < 3.0.0 - Authentication Bypass CVSS 3.1CRITICAL 9.8
- TI-2023-02794 WordPress Social Login and Register (Discord, Google, Twitter, LinkedIn) <= 7.6.4 - Authentication Bypass CVSS 3.1CRITICAL 9.8
- TI-2022-15071 WordPress OAuth Single Sign On – SSO (OAuth Client) Plugin <= 6.23.3 is vulnerable to Broken Authentication CVSS 3.1HIGH 8.8
- TI-2021-22592 WordPress Plugin Backup and Restore 1.0.3 Arbitrary File Deletion CVSS 4.0HIGH 8.7
- TI-2023-04605 Active Directory Integration < 4.1.10 - Unauthenticated Log Disclosure CVSS 3.1HIGH 7.5
- TI-2024-09173 Login using WordPress Users ( WP as SAML IDP ) <= 1.15.6 - Authenticated (Administrator+) SQL Injection CVSS 3.1HIGH 7.2
Sources
- CVE-2025-9485 · CVE Program
- CVE-2025-9485 · NVD
- FIRST EPSS
- GHSA-44hx-mv5h-wj6c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences