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CVE-2025-0520 PoC — ShowDoc < 2.8.7 Unauthenticated File Upload Remote Code Execution

Source
https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-0520.yaml
Associated Vulnerability
Title: ShowDoc < 2.8.7 Unauthenticated File Upload Remote Code Execution (CVE-2025-0520)
Description:An unrestricted file upload vulnerability in ShowDoc caused by improper validation of file extension allows execution of arbitrary PHP, leading to remote code execution.This issue affects ShowDoc: before 2.8.7.
Description
The open-source API documentation tool ShowDoc had a remote code execution vulnerability before version 2.8.7 This vulnerability allowed unauthenticated remote attackers to upload .php files because the image upload function was not authenticated and the file extension validation was improper.
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