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 unauthenticated attackers to have a certificate of their own trusted and then authenticate as any user, including an administrator.
CVE-2026-19842
NONE
EPSS 0.11%
Updated Aug 19, 2026
WordPress
CVE Details
CVE ID
CVE-2026-19842
Published Date
Aug 19, 2026
Vendor
WordPress
Severity
NONE
Exploit Prediction (EPSS)
Probability of Exploit
0.11%
Likelihood of exploitation in next 30 days
Percentile:
1.3th percentile (higher than 1.3% of all CVEs)
Standard patching cycle
Impact
Minimal impact
Source
View Advisory