Unknown SAML Single Sign On vulnerabilities

2 CVEs affecting Unknown SAML Single Sign On, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-82842, published 2026-09-20.

More from Unknown.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2026-82842, published 2026-09-20. High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days. The SAML Single Sign On WordPress plugin before 6.0.0 does not honour the configured criterion for linking an incoming single sign-on identity to a WordPress account, always resolving the identity…
• CVE-2026-19842, published 2026-08-19. High severity, CVSS 8.8. EPSS: 0.3% chance of exploitation in the next 30 days. 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…