CVE-2026-19842
Received
Received - Intake
SAML Signature Bypass in WordPress SSO Plugin
Vulnerability report for CVE-2026-19842, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-08-19
Last updated on: 2026-08-19
Assigner: WPScan
Description
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.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| miniorange | saml_single_sign_on | to 5.4.7 (exc) |
| wpsecure | saml_single_sign_on | 4.8.85 |
| wpsecure | saml_single_sign_on | to 5.4.7 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
