high8.8
CVE-2026-19842
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…
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| SAML Single Sign On WordPress Plugin | before 5.4.7 |
Versions were read from the advisory text. No structured product data has been published for this record yet.