What is CVE-2025-9485?

CVE-2025-9485 is a critical-severity vulnerability in Cyberlord92 Oauth Single Sign On – Sso (Oauth Client), classified under Improper Verification of Cryptographic Signature. CVSS score: 9.8/10. Published 2025-10-04.

How severe is CVE-2025-9485?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2025-9485 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Cyberlord92 Oauth Single Sign On – Sso (Oauth Client)

CVE-2025-9485

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 processin…

EPSS: 0.006 (42.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Cyberlord92 Oauth Single Sign On – Sso (Oauth Client) — versions 0

Weakness classification (CWE)

CWE-347 — Improper Verification of Cryptographic Signature

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-9485?: CVE-2025-9485 is a critical-severity vulnerability in Cyberlord92 Oauth Single Sign On – Sso (Oauth Client), classified under Improper Verification of Cryptographic Signature. CVSS score: 9.8/10. Published 2025-10-04.
How severe is CVE-2025-9485?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-9485 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.