CVE-2025-50866 PoC — CloudClassroom-PHP-Project 安全漏洞

Source

Associated Vulnerability

Description

Cross Site Scripting (XSS)

Readme

CloudClassroom-PHP-Project 1.0 contains a reflected Cross-site
Scripting (XSS) vulnerability in the email parameter of the
postquerypublic endpoint. Improper sanitization allows an attacker to
inject arbitrary JavaScript code that executes in the context of the
user s browser, potentially leading to session hijacking or phishing
attacks.

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Vulnerability Type : 

Cross Site Scripting (XSS)

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Vendor of Product : 

https://github.com/mathurvishal/CloudClassroom-PHP-Project

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Affected Product Code Base : 

https://github.com/mathurvishal/CloudClassroom-PHP-Project 1.0 - https://github.com/mathurvishal/CloudClassroom-PHP-Project 1.0

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Affected Component : 
postquerypublic.php, email parameter in POST request

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Attack Type : 
Remote

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Attack Vectors
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An attacker can exploit this vulnerability by sending a crafted POST request to the vulnerable endpoint /CloudClassroom-PHP-Project-master/postquerypublic, injecting malicious JavaScript via the email parameter. The application reflects this input without sanitization, leading to reflected XSS.

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Reproduction Steps:
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Deploy the vulnerable PHP app locally (e.g., http://localhost/CloudClassroom-PHP-Project-master/).

Send the following POST request:

POST /CloudClassroom-PHP-Project-master/postquerypublic HTTP/1.1
Host: localhost
Content-Type: application/x-www-form-urlencoded

email=testing@example.com'"()&%<zzz><ScRiPt >alert(9001)</ScRiPt>&gnamex=abc&squeryx=123&update=Post%20Query!

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Reference
https://owasp.org/www-community/attacks/xss/

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Discoverer : saurabh

Linkedin : https://www.linkedin.com/in/saurabh-b294b21aa/

File Snapshot

 [4.0K]  /data/pocs/c1ae0961fd75d2b2155e44161f915507a7242455
├── [1.9K]  Cross Site Scripting (XSS)
└── [2.0K]  README.md

0 directories, 2 files

Remarks