VULNERABILITY INTELLIGENCE
CVE-2026-19842
CVSS score8.8 HIGH
EPSS probability0.26%
CISA KEVNot currently listed
Published2026-08-19
Last modified2026-08-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Description
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.
Weakness classification
- CWE-287: Improper Authentication