What is CVE-2022-34858?

CVE-2022-34858 is a critical-severity vulnerability in Miniorange Oauth 2.0 Client For Sso, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2022-08-22.

How severe is CVE-2022-34858?

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

Is CVE-2022-34858 known to be exploited?

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

Auth bypass in Miniorange Oauth 2.0 Client For Sso

CVE-2022-34858

Authentication Bypass vulnerability in miniOrange OAuth 2.0 client for SSO plugin <= 1.11.3 at WordPress.

Vulnerability class: Broken Authentication

Published 2022-08-22 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.018 (77.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.018 · change: +0.001

Affected products

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

Public proof-of-concept exploits

20142995/nuclei-templates

References

patchstack.com/database/vulnerability/oauth-client/wordpress-oauth-2-0-client-f… (Third Party Advisory, vdb-entry)
lana.codes/lanavdb/df23b19f-4134-41d3-8cb3-9d44189b461b (Exploit, technical-description, Third Party Advisory)

Frequently asked questions

What is CVE-2022-34858?: CVE-2022-34858 is a critical-severity vulnerability in Miniorange Oauth 2.0 Client For Sso, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2022-08-22.
How severe is CVE-2022-34858?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-34858 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.