AtMail WebMail 4.61 Open Redirect

AtMail WebMail versions 4.61 and below suffer from an open redirection vulnerability.

MD5 | 981fb57e01c1b2573954ee0315759a9d

[+] Title: AtMail WebMail Open Redirect Vulnerability
[+] Date: 2020/03/11
[+] Author: Lutfu Mert Ceylan
[+] Vendor Homepage:
[+] Software: Atmail Cloud Hosted Email
[+] Tested on: Windows 10
[+] Versions: 4.61 and before
[+] Vulnerable Parameter: "redirect" (Get Method)
[+] Vulnerable File: /atmail/
[+} Dork : inurl:/atmail/ or /mail/

# Notes:

An open redirect is a vulnerability that occurs when an application
that takes a parameter and redirects a user to the parameter value
without any validation. This vulnerability is used for phishing
attacks for redirecting users to visit malicious sites without against
their will.

# PoC:

Example Open Redirect Payload: http://localhost/atmail/

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