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CVE-2026-19842highCWE-287

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

41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 8.8epss 0.2%
exploitation probability
0.2%top 90% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.