9.8

CVE-2025-9485: cyberlord92 oauth single sign on – sso (oauth client)

CVSS: 9.8v3.1CriticalDeferred
Published 04-10-2025Last modified 08-04-2026
Open JSON

Vulnerability summary

CVE-2025-9485 is a critical (CVSS 9.8) vulnerability in cyberlord92 oauth single sign on – sso (oauth client). EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 47.9% of scored vulnerabilities. Fixed in 6.26.13.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.60%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 04-10-2025
    PublishedVulnerability first disclosed.
  2. 08-04-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.60%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

0.00 pp

From 0.60% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.60%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cyberlord921 product
Wordpress1 product
  • miniorange-login-with-eve-online-google-facebook≤ 6.26.12 (fixed in 6.26.13)

2 vendors · 2 products

References

4 links