CVE-2026-22481: 
WordPress vulnerability analysis and mitigation

CVE-2026-22481 is a Missing Authorization vulnerability in the BD Courier Order Ratio Checker WordPress plugin, developed by Rasedul Haque Rumi. The flaw allows authenticated attackers with low privileges to exploit incorrectly configured access control security levels. All versions up to and including 2.0.1 are affected. The vulnerability was disclosed on January 22, 2026, by Patchstack, and carries a CVSS v3.1 base score of 4.3 (Medium) (Patchstack).

The vulnerability is classified as CWE-862 (Missing Authorization), meaning the plugin fails to properly verify whether an authenticated user has the appropriate permissions before granting access to certain functionality. An attacker with a low-privilege WordPress account (e.g., subscriber) can send crafted network requests to restricted plugin endpoints without proper authorization checks being enforced. No complex preconditions are required beyond having a valid, low-privilege account on the target WordPress site (Patchstack).

Successful exploitation allows a low-privilege authenticated attacker to perform unauthorized actions within the plugin's functionality, primarily affecting data integrity. The CVSS scoring reflects a low integrity impact with no direct confidentiality or availability impact; however, depending on the plugin's role in managing courier order data, unauthorized modification of order ratio information could disrupt business operations or manipulate reporting data on affected WordPress sites (Patchstack).

There is no public proof-of-concept exploit code available, and no evidence of in-the-wild exploitation has been reported as of the time of disclosure. The EPSS score is approximately 0.017%, indicating a very low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. Exploitation requires a valid low-privilege account on the target WordPress installation, limiting the attack surface somewhat (Feedly).

1. Reconnaissance: Identify WordPress sites running the BD Courier Order Ratio Checker plugin version ≤ 2.0.1 using tools like WPScan or by inspecting publicly accessible plugin metadata.
2. Obtain low-privilege account: Register or obtain a low-privilege WordPress account (e.g., subscriber role) on the target site.
3. Identify unprotected endpoints: Enumerate plugin-specific AJAX actions or admin endpoints that lack proper capability checks, typically registered via wp_ajax_nopriv_ or wp_ajax_ hooks without nonce/capability verification.
4. Send unauthorized request: Craft and send an authenticated HTTP request (with valid WordPress session cookies) to the identified endpoint, bypassing the missing authorization check.
5. Achieve unauthorized action: Successfully perform restricted operations — such as reading, modifying, or deleting courier order ratio data — that should be restricted to higher-privileged users (Patchstack).

• Logs: WordPress access logs showing authenticated requests from low-privilege user accounts to plugin-specific admin AJAX endpoints (/wp-admin/admin-ajax.php) with actions associated with the BD Courier Order Ratio Checker plugin.
• Logs: Unexpected modifications to courier order ratio data in the WordPress database without corresponding administrator activity.
• Network: Repeated POST requests to wp-admin/admin-ajax.php with plugin-specific action parameters from accounts with subscriber or contributor roles.

As of the disclosure date, no patched version of the BD Courier Order Ratio Checker plugin has been confirmed available. Site administrators should consider deactivating and removing the plugin until a patched version is released. Access to the WordPress site should be restricted to trusted users, and the principle of least privilege should be enforced for all accounts. Administrators should monitor WordPress logs for suspicious low-privilege account activity and contact the plugin vendor (Rasedul Haque Rumi) for remediation updates (Patchstack).