CVE-2026-82842 SAML Single Sign On WordPress plugin - Authentication Bypass

SAML Single Sign On WordPress plugin < 6.0.0 contains an authentication bypass caused by ignoring configured criteria for linking SSO identities, letting attackers authenticate as any account by asserting arbitrary login names, exploit requires control over identity provider assertions.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.37% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
20 September 2026
Updated
15 October 2026
Weakness
CWE-269

Vendor fix

Update to version 6.0.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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