Text Injection in URL Path Reflected in Realtime Page

linkResolution: ❌

Not a security vulnerability

Not considered for fix


linkReport

Summary:
 
A text injection vulnerability exists in the realtime endpoint where user-supplied input in the URL path is reflected directly in the response without proper sanitization.
 
Affected Endpoint:
 
https://realtime.amplenote.com/you+have+been+hacked+please+vsit+on+https://evil.com
Description:
The application reflects arbitrary text provided in the URL path. This allows an attacker to inject misleading or malicious messages that are displayed to users without validation or encoding.
 
Steps to Reproduce:
 
Open the following URL in a browser:
 
https://realtime.amplenote.com/you+have+been+hacked+please+vsit+on+https://evil.com
Observe that the injected message is rendered in the response.
 
Impact:
 
Can be used for phishing or social engineering attacks
 
May mislead users into visiting malicious links
 
Damages user trust and platform credibility
 
Severity: Low (Text Injection, no HTML/JS execution)
 
Recommendation:
 
Properly sanitize and encode user-controlled input before rendering
 
Avoid reflecting raw URL path content directly in responses
 
Implement input validation and output encoding