CVE-2026-82183 OAuth Single Sign On 6.25.0 - 7.0.0 - Unauthenticated Account Takeover via Unverified Steam OpenID Assertion

The OAuth Single Sign On WordPress plugin before 7.0.1 does not verify the identity assertion returned by its Steam single sign-on flow, allowing unauthenticated attackers to log in as an arbitrary non-administrator user, and to create new accounts...

CVE-2026-82183 OAuth Single Sign On 6.25.0 - 7.0.0 - Unauthenticated Account Takeover via Unverified Steam OpenID Assertion

The OAuth Single Sign On WordPress plugin before 7.0.1 does not verify the identity assertion returned by its Steam single sign-on flow, allowing unauthenticated attackers to log in as an arbitrary non-administrator user, and to create new accounts...

CVE-2026-82183: Improper Authentication

The OAuth Single Sign On WordPress plugin before 7.0.1 does not verify the identity assertion returned by its Steam single sign-on flow, allowing unauthenticated attackers to log in as an arbitrary non-administrator user, and to create new accounts...

PT-2026-84641

The OAuth Single Sign On WordPress plugin before 7.0.1 does not verify the identity assertion returned by its Steam single sign-on flow, allowing unauthenticated attackers to log in as an arbitrary non-administrator user, and to create new accounts...

CVE-2026-75807: Improper Authentication

The SAML Single Sign On – SSO Login plugin for WordPress is vulnerable to Authentication Bypass in versions up to, and including, 5.4.6. This is due to the mosamlloginvalidate ACS handler persisting the X.509 certificate extracted from an incoming SAMLResponse into the mosamlrequiredcertificate...

Wordfence Argus Finds Critical Authentication Bypass in WPMU DEV Dashboard Plugin

On August 19th, 2026, during internal research, I discovered an Authentication Bypass vulnerability in WPMU DEV Dashboard, a WordPress plugin with an estimated 350,000 active installations. This vulnerability makes it possible for unauthenticated attackers to gain administrator access when Hub...

EUVD-2026-66181

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Internationalization Single Sign-On allows Authentication Bypass. This issue affects Internationalization Single Sign-On versions: from 0.0.0 to 1.8.0...

CVE-2026-16639

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Internationalization Single Sign-On allows Authentication Bypass. This issue affects Internationalization Single Sign-On versions: from 0.0.0 to 1.8.0...

CVE-2026-16639 Internationalization Single Sign-On - Critical - Access bypass - SA-CONTRIB-2026-081

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Internationalization Single Sign-On allows Authentication Bypass. This issue affects Internationalization Single Sign-On versions: from 0.0.0 to 1.8.0...

CVE-2026-16639

The Drupal Internationalization Single Sign-On module (versions 0.0.0 to 1.8.0 ) is vulnerable to an authentication bypass due to insufficient validation of a short-lived token. In multilingual website scenarios using different domain names per language, an attacker can bypass access controls to ...

CVE-2026-16639 Internationalization Single Sign-On - Critical - Access bypass - SA-CONTRIB-2026-081

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Internationalization Single Sign-On allows Authentication Bypass. This issue affects Internationalization Single Sign-On versions: from 0.0.0 to 1.8.0...

CVE-2026-16639: Authentication Bypass Using an Alternate Path or Channel

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Internationalization Single Sign-On allows Authentication Bypass. This issue affects Internationalization Single Sign-On versions: from 0.0.0 to 1.8.0...

CVE-2026-77998: Authorization Bypass Through User-Controlled Key

Joomla Extension - miniorange.com - Unauthenticated Authentication Bypass via SAMLResponse Parameter in miniOrange SAML SSO 11.0.2, SAML SP Single Sign On – Login with ADFS 6.4, SAML SP Single Sign On – SAML SSO login with Google Apps 6.4 - This is due to the mosamlvalidatesignature function...

CVE-2026-77995: Authorization Bypass Through User-Controlled Key

Joomla Extension - miniorange.com - Arbitrary account takeover in miniOrange OAuth Client 3.2.0, OAuth Single Sign-On – OIDC SSO 1.2.2, Login with Keycloak OAuth Single Sign-On SSO 1.2.2, Single Sign-On for Educational Institutes 1.2.2 - The manipulation of a cookie value allows actors to login a...

WordPress SAML Single Sign On plugin 4.8.85-5.4.6 - Unauthenticated Administrator Account Takeover via SAML Trust Anchor Overwrite vulnerability

Unauthenticated Administrator Account Takeover via SAML Trust Anchor Overwrite vulnerability discovered by Suhayb Ahmed in WordPress Plugin SAML Single Sign On – SSO Login versions 4.8.85-5.4.6...

CVE-2026-19842

The SAML Single Sign On WordPress plugin before 5.4.7 does not verify the signature of a SAML response before storing the certificate it carries, and offers an administrator a one-click control that promotes that stored certificate to the site's trusted signing certificate, allowing unauthenticat...

CVE-2026-19842

The SAML Single Sign On WordPress plugin (versions 4.8.85-5.4.6 ) is vulnerable to an unauthenticated administrator account takeover via a SAML trust anchor overwrite . The root cause is that the plugin fails to verify the signature of a SAML response before storing its certificate. An unauthenti...

CVE-2026-19842 SAML Single Sign On 4.8.85 - 5.4.6 - Unauthenticated Administrator Account Takeover via SAML Trust Anchor Overwrite

The SAML Single Sign On WordPress plugin before 5.4.7 does not verify the signature of a SAML response before storing the certificate it carries, and offers an administrator a one-click control that promotes that stored certificate to the site's trusted signing certificate, allowing unauthenticat...

CVE-2026-19842 SAML Single Sign On 4.8.85 - 5.4.6 - Unauthenticated Administrator Account Takeover via SAML Trust Anchor Overwrite

The SAML Single Sign On WordPress plugin before 5.4.7 does not verify the signature of a SAML response before storing the certificate it carries, and offers an administrator a one-click control that promotes that stored certificate to the site's trusted signing certificate, allowing unauthenticat...

PT-2026-78307

Name of the Vulnerable Software and Affected Versions SAML Single Sign On versions prior to 5.4.7 Description The plugin fails to verify the signature of a SAML response before storing the included certificate. An administrator can then promote this stored certificate to the site's trusted signin...