[Django] #36000: Insecure URL Handling (HTTP Protocol Default) in urlize

[Django]

#36000: Insecure URL Handling (HTTP Protocol Default) in urlize
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Reporter: saravana-hackz | Type:
| Cleanup/optimization
Status: new | Component: HTTP
| handling
Version: 5.1 | Severity: Normal
Keywords: | Triage Stage:
| Unreviewed
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 1 | UI/UX: 0
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Hi Team,
In django/utils/html.py ,Line no 347 ,Due to following code,
url = smart_urlquote("http://%s" % html.unescape(middle))

When user input does not include protocol it defaultly prefers http
(Insecure Protocol).
Example :
Considered a web app using urlize() for password reset email template
input = Password reset link myapp.com/password/reset/{token}
output,
Password reset link <a href="http://myapp.com/password/reset/{token}"/>
so when end user of myapp clicks it the url with token sent in http
insecure protocol.

This behavior could potentially lead to man-in-the-middle attacks

Suggested Fix:
Default to HTTPS: If the URL doesn't specify a protocol, Django could
default to https://
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Ticket URL: <https://code.djangoproject.com/ticket/36000>
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