WordPress security changelog
CRITICAL CVE-2026-57807 Deferred

OAuth Single Sign On - SSO (OAuth Client): Privilege escalation or authentication bypass

OAuth Single Sign On - SSO (OAuth Client) is affected by privilege escalation or authentication bypass. Exposure depends on how the affected operation is made reachable by the site. A successful request can grant permissions or access that the caller should not possess. The published affected range is n/a through 38.5.8.

CVE / CNA score 9.8 CVSS 3.1 · audit@patchstack.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
OAuth Single Sign On - SSO (OAuth Client)
Plugin slug
miniorange-oauth-oidc-single-sign-on
Affected
n/a through 38.5.8
Safe version
38.5.8.1
Published
Jul 10, 2026
Weakness
CWE-288 — Authentication Bypass Using an Alternate Path or Channel

This CVE was published Jul 10, 2026 and is one of 1 known issue for this plugin.

Update, patch or deactivate.

Update OAuth Single Sign On - SSO (OAuth Client) to 38.5.8.1 or later, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary and upstream sources