Showing 2 vulnerabilities on this page for SAML Single Sign On – SSO Login

Signals CISA KEV Ransomware Nuclei
cyberlord92 vulnerability results
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SAML Single Sign On <= 5.4.4 - Unauthenticated Authentication Bypass via SAMLResponse Parameter

The SAML Single Sign On – SSO Login plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 5.4.4. 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 W

CWE-287Jul 23, 2026
CVSS9.8v3.1EPSS0.547%PoCs1SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX

SAML Single Sign On <= 5.4.3 - Unauthenticated Authentication Bypass via 'SAMLResponse' Parameter Signature Algorithm Confusion

The SAML Single Sign On – SSO Login plugin for WordPress is vulnerable to Authentication Bypass via SAML Signature Algorithm Confusion in all versions up to, and including, 5.4.3. The vulnerability exists because `Mo_SAML_Utilities::mo_saml_cast_key()` reads the `SignatureMethod` Algorithm attribute directly from the attacker-controlled `SAMLResponse` parameter rather than enforcing the locally configured algorithm, causing the plugin to recast the IdP's RSA public key as an HMAC-SHA1 shared sec

CWE-347Jul 16, 2026
CVSS9.8v3.1EPSS0.448%PoCs1SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX