CVE-2026-89027

miniOrange JWT Authentication for WP REST APIs plugin for WordPress before 4.8.0 contains an authentication method downgrade vulnerability that allows unauthenticated attackers to bypass administrator-configured authentication by supplying a specific GET parameter without any capability check or nonce verification. Attackers can force the plugin to use Basic HTTP authentication regardless of configured JWT or API token settings, then exploit distinguishable error codes and the absence of rate limiting to perform unthrottled username enumeration and credential guessing attacks.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://wordpress.org/plugins/wp-rest-api-authentication/#developers
https://www.vulncheck.com/advisories/miniorange-jwt-authentication-for-wp-rest-apis-authentication-downgrade

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-15 20:19

Updated : 2026-09-15 20:19

NVD link : CVE-2026-89027

Mitre link : CVE-2026-89027

CVE.ORG link : CVE-2026-89027

JSON object : View

Products Affected

No product.

CWE

CWE-306

Missing Authentication for Critical Function

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