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URL Redirection to Untrusted Site ('Open Redirect')

CVE-2025-67852

Medium
6.1/10

Summary

A flaw was found in Moodle versions prior to 4.1.22, 4.2.0-beta prior to 4.4.12, 4.5.0-beta prior to 4.5.8, 5.0.0-beta prior to 5.0.4 and 5.1.0-beta prior to 5.1.1. An Open Redirect vulnerability in the OAuth login flow allows a remote attacker to redirect users to attacker-controlled pages after they have successfully authenticated. This occurs due to insufficient validation of redirect parameters, which could lead to phishing attacks or information disclosure.

  • 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