Vulnerability · Published Sep 15, 2026 · Assigned by VulnCheck

CVE-2026-89027miniOrange JWT Authentication for WP REST APIs < 4.8.0 Authentication Downgrade

Medium 6.5

In plain English

A medium-severity missing authentication in JWT Authentication for WP REST APIs from miniOrange. 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 32% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.4%top 67.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
miniOrange	JWT Authentication for WP REST APIs	0 – before 4.8.0

Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

References

WordPress Changelog release-notes
https://www.vulncheck.com/advisories/miniorange-jwt-authentication-for-wp-rest-apis-authentication-downgrade third-party-advisory