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CVE-2026-19715

WP OAuth Server < 6.3.1 - Unauthenticated OAuth Token and User Data Disclosure via Debug Log File

The WP OAuth Server ( Login with WordPress ) WordPress plugin before 6.3.1 does not restrict access to the debug log it writes, which is stored at a fixed and publicly reachable location, allowing unauthenticated users to read the OAuth tokens and authorisation codes it has issued as well as user records including password hashes when debug logging is enabled.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Wordpress-extensions
Products
Wp Oauth Server
CVE-2026-107433

WordPress WP OAuth Server plugin <= 6.4.0 - Broken Access Control vulnerability

Missing Authorization vulnerability in miniOrange WP OAuth Server miniorange-oauth-20-server allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WP OAuth Server: from n/a through 6.4.0.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Miniorange Wordpress-extensions
Products
Wp Oauth Server Wp Oauth Server
CVE-2026-82843

WP OAuth Server < 6.4.0 - Subscriber+ Cross-User Account Takeover via OIDC ID Token Substitution

The WP OAuth Server ( Login with WordPress ) WordPress plugin before 6.4.0 does not bind the OpenID Connect identity assertion it issues to the authorization grant being exchanged, returning instead the assertion belonging to whichever user authenticated most recently, which allows users with the Subscriber role and above to obtain a validly signed identity assertion for another user, including an administrator, and authenticate as them at any application that uses the site for single sign-on.

CVSS 3.1 · 9 Critical EPSS < 1% KEV · Not listed
Vendors
Wordpress-extensions
Products
Wp Oauth Server