CVE-2026-82842 | BDVDB-2026-377178 Detail

SAML Single Sign On

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-269 Improper Privilege Management

References#

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

Exploit#

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

History#

Version 12026-09-20Record published in the CVE List.

Published

Published: 2026-09-20
Last modified: 2026-09-20

Vendor information

Vendor: Not stated
Product: SAML Single Sign On

Score

8.1 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 31.5.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Privilege Escalation

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 4.8.43 and < 6.0.0
Fixed
6.0.0

Scoring System

CVSS v4.0

Not available

CVSS v3.1

8.1 High

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

Metric breakdown
Attack Vector	Network
Attack Complexity	High
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).