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URL Redirection to Untrusted Site ('Open Redirect')

CVE-2020-22840

Medium
6.1/10

Summary

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.

  • LOW
  • NETWORK
  • LOW
  • CHANGED
  • REQUIRED
  • NONE
  • LOW
  • NONE

CWE-601 - Open Redirect

An open redirect attack employs a URL parameter, HTML refresh tags, or a DOM based location change to exploit the trust of a vulnerable domain to direct the users to a malicious website. The attack could lead to higher severity vulnerabilities such as unauthorized access control, account takeover, XSS, and more.

References

Advisory Timeline

  • Published