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b2evolution CMS 6.11.6 Open Redirection
| Reporter | Title | Published | Views | Family All 10 |
|---|---|---|---|---|
 | CVE-2020-22840 | 14 Nov 202406:08 | – | circl |
 | b2evolution Input Validation Error Vulnerability | 9 Feb 202100:00 | – | cnnvd |
 | CVE-2020-22840 | 9 Feb 202113:09 | – | cve |
 | CVE-2020-22840 | 9 Feb 202113:09 | – | cvelist |
 | b2evolution 6.11.6 - 'redirect_to' Open Redirect | 11 Feb 202100:00 | – | exploitdb |
 | b2evolution CMS <6.11.6 - Open Redirect | 6 Jun 202603:01 | – | nuclei |
 | CVE-2020-22840 | 9 Feb 202114:15 | – | nvd |
 | b2evolution < 6.11.7 Multiple Vulnerabilities | 11 Feb 202100:00 | – | openvas |
 | Open redirect | 9 Feb 202114:15 | – | prion |
 | CVE-2020-22840 | 22 May 202515:19 | – | redhatcve |
10
`# Exploit Title: *Open redirect in b2evolution CMS 6.11.6 redirect_to
parameter in email_passthrough.php*
# Google Dork: N/A
# Date: 10/02/2021
# Exploit Author: Soham Bakore, Nakul Ratti
# Vendor Homepage: https://b2evolution.net/
# Software Link:
https://b2evolution.net/downloads/6-11-6-stable?download=12405
# Version: 6.11.6
# Tested on: latest version of Chrome, Firefox on Windows and Linux
# CVE : *CVE-2020-22840*
Vulnerable File:
--------------------------
http://host/htsrv/email_passthrough.php <http://host/evoadm.php>
Vulnerable Issue:
--------------------------
redirect_to parameter has no input validation/domain whitelisting.
--------------------------Proof of Concept-----------------------
Steps to Reproduce:
1. Send the following link :
*http://127.0.0.1/htsrv/email_passthrough.php?email_ID=1&type=link&email_key=5QImTaEHxmAzNYyYvENAtYHsFu7fyotR&redirect_to=http%3A%2F%2Fgoogle.com
<http://127.0.0.1/htsrv/email_passthrough.php?email_ID=1&type=link&email_key=5QImTaEHxmAzNYyYvENAtYHsFu7fyotR&redirect_to=http%3A%2F%2Fgoogle.com>*
to
the unsuspecting user
2. The user will be redirected to Google.com or any other attacker
controlled domain
3. This can be used to perform malicious phishing campaigns on unsuspecting
users
`
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10 Feb 2021 00:00Current
6.3Medium risk
Vulners AI Score6.3
EPSS0.42697