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URL Redirection to Untrusted Site ('Open Redirect')

CVE-2017-18897

Medium
6.1/10

Summary

An issue was discovered in Mattermost Server prior to 4.0.5-rc1, 4.1.x prior to 4.1.1-rc1, and 4.2.0-rc1, when used as an OAuth 2.0 service provider. It mishandles a deny action for a redirection.

  • 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