Privilege escalation in Saml Single Sign On
CVE-2026-82842
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 class: Privilege Escalation
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Unknown Saml Single Sign On
Weakness classification (CWE)
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-82842?
- CVE-2026-82842 is a high-severity vulnerability in Saml Single Sign On, classified under Improper Privilege Management. CVSS score: 8.1/10. Published 2026-09-20.
- How severe is CVE-2026-82842?
- High severity. CVSS v3 base score is 8.1 out of 10.