This vulnerability (CVE-2026-65520) in miniOrange WP OAuth Server involves improper neutralization of special elements used in an SQL command (CWE-89), resulting in an unauthenticated SQL Injection. It affects all versions up to 6.2.0 inclusive. The CVSS 3.1 base score is 9.3, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and a scope change with high confidentiality impact and low availability impact. The vulnerability is publicly disclosed but no vendor remediation or patch is currently documented.

Successful exploitation could allow an unauthenticated attacker to execute arbitrary SQL commands on the backend database, leading to a complete compromise of confidentiality of data stored in the database. Integrity is not impacted, and availability impact is low. The vulnerability can be exploited remotely without authentication or user interaction.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider restricting access to the affected service and monitoring for suspicious activity related to SQL injection attempts. Avoid exposing the vulnerable plugin on publicly accessible endpoints if possible.