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.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-22840
Reference (s):
- 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