Input in parameter notification_urls is not processed resulting in javascript execution in the application
for server_url in field.data:
if not apobj.add(server_url):
message = field.gettext('\'%s\' is not a valid AppRise URL.' % (server_url))
raise ValidationError(message)
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A reflected XSS vulnerability happens when the user input from a URL or POST data is reflected on the page without being stored, thus allowing the attacker to inject malicious content
Nguyen-Trung-Kien Analyst
Summary
Input in parameter notification_urls is not processed resulting in javascript execution in the application
Details
changedetection.io version: v0.45.21
https://github.com/dgtlmoon/changedetection.io/blob/0.45.21/changedetectionio/forms.py#L226
PoC
Setting > ADD Notification URL List
Requests
Impact
A reflected XSS vulnerability happens when the user input from a URL or POST data is reflected on the page without being stored, thus allowing the attacker to inject malicious content