miniOrange JWT Authentication for WP REST APIs < 4.8.0 Authentication Downgrade (CVE-2026-89027) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-89027

miniOrange JWT Authentication for WP REST APIs < 4.8.0 Authentication Downgrade

Answer in brief

CVE-2026-89027 records a Unknown severity vulnerability in miniOrange JWT Authentication for WP REST APIs < 4.8.0 Authentication Downgrade. The current sources do not mark it as known exploited. The current feed maps miniOrange/JWT Authentication for WP REST APIs (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 15, 2026Updated Sep 15, 2026Source checked Sep 15, 2026First seen by HOL Sep 15, 2026Material review Sep 15, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps miniOrange/JWT Authentication for WP REST APIs (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
miniOrange/JWT Authentication for WP REST APIsgeneric	>=0 <4.8.0	4.8.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for miniOrange/JWT Authentication for WP REST APIs.
Review the reported fix. Update miniOrange/JWT Authentication for WP REST APIs to 4.8.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 15, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.