SAML Single Sign On 4.8.85 - 5.4.6 - Unauthenticated Administrator Account Takeover via SAML Trust Anchor Overwrite

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-19842
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-19 06:17:40 UTC
Updated2026-08-19 06:17:40 UTC
DescriptionThe 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.

Risk And Classification

Problem Types: CWE-287 Improper Authentication

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown SAML Single Sign On affected 4.8.85 5.4.7 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/7b79d86e-d3f8-4d4f-929b-fd00540cc00f [email protected] wpscan.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Suhayb Ahmed (en)

CNA: WPScan (en)

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