The jonkastonka Cookies and Content Security Policy WordPress plugin through version 2.29 contains incorrect access control in an AJAX consent-data endpoint. Remote attackers can invoke the unauthenticated functionality repeatedly, causing unlimited database write operations and exhausting database-server resources.
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This repository provides a proof-of-concept (PoC) exploit for CVE-2025-51529, a denial of service (DoS) vulnerability in the 'Cookies and Content Security Policy' WordPress plugin (by jonkastonka) through version 2.29. The exploit leverages incorrect access control in the plugin's AJAX endpoint, allowing unauthenticated remote attackers to send unlimited POST requests to '/wp-admin/admin-ajax.php' with the 'action=cacsp_insert_consent_data' parameter. Each request causes a new row to be inserted into the database, rapidly increasing its size and exhausting server resources (CPU, disk I/O). The repository contains two files: a README.md with detailed vulnerability and usage information, and 'payload.py', a Python script that launches a multi-threaded DoS attack against the vulnerable endpoint. The script allows the user to specify the target URL and number of threads, and visualizes the attack's impact on response time and database growth. No detection or fake code is present; this is a functional DoS exploit PoC.
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