CVE-2026-77995: Miniorange.com Login With Keycloak OAuth Single Sign-On SSO Free Extension For Joomla

Critical severity, CVSS 10.0. EPSS: 0.4% chance of exploitation in the next 30 days.

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 as arbitrary accounts, including admins.

Affected products

• Miniorange.com Login With Keycloak OAuth Single Sign-On SSO Free Extension For Joomla: version 1.0.0-1.2.1 only
• Miniorange.com Miniorange OAuth Client Free Extension For Joomla: version 1.0.0-3.1.9 only
• Miniorange.com OAuth Single Sign-On – Oidc SSO | Login With Azure Ad Free Extension For Joomla: version 1.0.0-1.2.1 only
• Miniorange.com Single Sign-On For Educational Institutes Free Extension For Joomla: version 1.0.0-1.2.1 only

Published 2026-08-24. Last modified 2026-09-08.