Threat Intelligence Database

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 mo_saml_validate_signature() function performing a loose boolean check on the raw tri-state integer returned by PHP's openssl_verify(), causing an error return value of -1 to be evaluated as truthy and therefore treated as a successful signature verification. This makes it possible for unauthenticated attackers to log in as any existing Joomla user, including administrators, by submitting a crafted SAMLResponse containing an attacker-controlled NameID and a deliberately malformed signature value that triggers an OpenSSL processing error — bypassing verification entirely and resulting in wp_set_auth_cookie() being called for the targeted account.

A critical authorization bypass vulnerability (CVE-2026-77995) exists in the miniOrange OAuth Client (free) extension for Joomla. Versions prior to 3.2.0 for miniOrange OAuth Client and prior to 1.2.2 for related OAuth Single Sign-On extensions are affected. The flaw allows an attacker to manipulate a cookie value to log in as arbitrary users, including administrators, leading to arbitrary account takeover.