# CVE-2026-89027

## Summary

- **CVE ID:** CVE-2026-89027
- **Severity:** MEDIUM
- **CVSS Score:** 6.9 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-306
- **Published:** Sep 15, 2026
- **Last Modified:** Sep 15, 2026

## Description

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.

## Affected Products

- miniOrange — JWT Authentication for WP REST APIs (0)

## References

- [CNA](https://wordpress.org/plugins/wp-rest-api-authentication/#developers)
- [CNA](https://www.vulncheck.com/advisories/miniorange-jwt-authentication-for-wp-rest-apis-authentication-downgrade)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.36%
- **EPSS Percentile:** 30.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._