Executive Summary

CVE-2026-24577 is a Broken Access Control vulnerability in the WordPress Pie Register Plugin (up to version 3.8.4.7). It occurs because of missing authorization, authentication, or nonce token checks in certain plugin functions. This allows unauthenticated users to perform actions that should require higher privileges, meaning the plugin does not properly restrict access to sensitive operations. [1]

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Impact Analysis

This vulnerability can allow unauthorized users to perform privileged actions within the Pie Register plugin, potentially leading to unauthorized changes or access to sensitive data. Although the severity is rated low (CVSS 5.3) and exploitation is considered unlikely, it still poses a security risk due to improper access control. [1]

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Detection Guidance

Detection of this vulnerability involves checking for unauthorized access attempts or actions that should require higher privileges within the Pie Register plugin. Since the issue is due to missing authorization and authentication checks, monitoring web server logs for unusual requests to Pie Register plugin endpoints or functions may help. Specific commands are not provided in the resources, but you can use tools like curl or wget to attempt accessing restricted plugin functions without authentication to test for the vulnerability. [1]

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Mitigation Strategies

Immediate mitigation steps include restricting access to the Pie Register plugin functions by implementing additional access control measures at the web server or application level, such as IP whitelisting or authentication enforcement. Since no official fix or patched version is available, monitoring for suspicious activity and limiting plugin usage or disabling it temporarily until a patch is released is recommended. [1]

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