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Vulnerability record · CVE-2026-82842 · published 20 September 2026

CVE-2026-82842: Improper privilege management vulnerability

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.

8.1 CVSS 3.1 High EPSS 0.37% · top 71.3% CWE-269 · Improper privilege management Deferred
8.1CVSS 3.1 base score
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
21 Sep 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://wpscan.com/vulnerability/4ae66b2c-a0de-405f-baca-127302257540/

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Source: NIST National Vulnerability Database (record CVE-2026-82842), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.