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URL Redirection to Untrusted Site ('Open Redirect')

CVE-2021-30185

High
7.5/10

Summary

CERN Indico before 2.3.4 and Flask-Multipass before 0.3.5 can use an attacker-supplied Host header in a password reset link.

  • LOW
  • NETWORK
  • HIGH
  • UNCHANGED
  • NONE
  • NONE
  • NONE
  • 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