WordPress OAuth Single Sign On - SSO (OAuth Client) plugin <= 38.5.8 - Broken Authentication vulnerability

published 2026-07-10 4 mo ago modified 2026-10-25 15 d ago also EUVD-2026-43028

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits: 0; none known

Authentication Bypass Using an Alternate Path or Channel vulnerability in miniOrange Security Software Pvt Ltd. OAuth Single Sign On - SSO (OAuth Client) allows Password Recovery Exploitation.

This issue affects OAuth Single Sign On - SSO (OAuth Client): from n/a through 38.5.8.

Patch / fix

fixed in 1

miniOrange Security Software Pvt Ltd. OAuth Single Sign On - SSO (OAuth Client) 38.5.8.1

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 3 mo ago (2026-07-13)

Exploit prediction

0.73% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

miniOrange Security Software Pvt Ltd. OAuth Single Sign On - SSO (OAuth Client)

Classification

Weakness

CWE-288 Authentication Bypass Using an Alternate Path or Channel

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/wordpress/plugin/miniorange-oauth-oidc-single-sign-on/vulnerability/wordpress-oauth-single-sign-on-s
vdb-entry

Sources

CVE List CVE-2026-57807
NVD CVE-2026-57807

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary