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HIGH

CVE-2026-82842

CVSS v3

8.1

HIGH

EPSS Score

0.4 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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.

Technical details

Published
2026-09-20
Last Modified
2026-09-21

Frequently asked questions

What is 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.

Is CVE-2026-82842 actively exploited?

Active exploitation of CVE-2026-82842 has not been confirmed. Its EPSS score was 0.4% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-82842?

CVE-2026-82842 has a CVSS v3 base score of 8.1 (HIGH severity).

Is CVE-2026-82842 affecting your environment?

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