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CVE-2026-89027

miniOrange JWT Authentication for WP REST APIs < 4.8.0 Authentication Downgrade

CVSS 4.0 6.9 MEDIUMCVSS 3.1 6.5 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-89027

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-89027

Published

JWT Authentication for WP REST APIs

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "defaultStatus": "unaffected",
                    "vendor": "miniOrange",
                    "product": "JWT Authentication for WP REST APIs",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "versionType": "semver",
                            "lessThan": "4.8.0"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON