Vulnerability · Published Sep 20, 2026 · Assigned by WPScan

CVE-2026-82842SAML Single Sign On < 6.0.0 - Unauthenticated Privilege Escalation via Account Matching

High 8.1

In plain English

A high-severity privilege mismanagement in SAML Single Sign On from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.4%top 68.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Unknown	SAML Single Sign On	4.8.43 – before 6.0.0

Weakness: CWE-269 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://wpscan.com/vulnerability/4ae66b2c-a0de-405f-baca-127302257540/ exploit, vdb-entry, technical-description