CVE-2026-82842
HighCVSS 8.1Exploitation Probability (EPSS)
Low risk13th percentile - higher than 13% of all known CVEs
Summary
The SAML Single Sign On WordPress plugin before 6.0.0 does not honour the configured criterion for linking an incoming single sign-on identity to a WordPress account, always resolving the identity by login name whatever the site has chosen, which allows an attacker who can have the site's identity provider assert a login name of their choosing to authenticate as any account, including an administrator, without proving ownership of that account.
Risk Assessment
The vulnerability enables full takeover of any account, including administrator accounts, posing a critical threat to site security.
Recommendation
Update the SAML Single Sign On plugin to version 6.0.0 or later.
Other vulnerabilities in SAML Single Sign On WordPress plugin
Original NVD description (English source)
The SAML Single Sign On WordPress plugin before 6.0.0 does not honour the configured criterion for linking an incoming single sign-on identity to a WordPress account, always resolving the identity by login name whatever the site has chosen, which allows an attacker who can have the site's identity provider assert a login name of their choosing to authenticate as any account, including an administrator, without proving ownership of that account.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS