Vulnerability CVE-2020-22840
Published: 2021-02-09

Description:
Open redirect vulnerability in b2evolution CMS version prior to 6.11.6 allows an attacker to perform malicious open redirects to an attacker controlled resource via redirect_to parameter in email_passthrough.php.

See advisories in our WLB2 database:
Topic
Author
Date
Low
b2evolution CMS 6.11.6 Open Redirection
Nakul Ratti
11.02.2021

Type:

CWE-601

 (URL Redirection to Untrusted Site ('Open Redirect'))

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.8/10
4.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None
Affected software
B2evolution -> B2evolution 

 References:
http://packetstormsecurity.com/files/161362/b2evolution-CMS-6.11.6-Open-Redirection.html
https://github.com/b2evolution/b2evolution/issues/102
https://www.exploit-db.com/exploits/49554
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