CVE-2026-89027miniOrange JWT Authentication for WP REST APIs < 4.8.0 Authentication Downgrade
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- Weakness (CWE)
- CWE-306
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
miniOrange JWT Authentication for WP REST APIs miniorange:jwt_authentication_for_wp_rest_apis (from the name) | before 4.8.0 | CNA record |
References
- https://wordpress.org/plugins/wp-rest-api-authentication/#developersrelease-notes
- https://www.vulncheck.com/advisories/miniorange-jwt-authentication-for-wp-rest-apis-authentication-downgradethird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.