OAuth Server <= 4.3.3 - Open Redirect

URL Redirection to Untrusted Site ('Open Redirect')
CVE CVE-2024-31253
CVSS 5.4 (Medium)
Publicly Published April 5, 2024
Last Updated April 11, 2024
Researcher Le Ngoc Anh - sun*inc


The WP OAuth Server (OAuth Authentication) plugin for WordPress is vulnerable to Open Redirect in all versions up to, and including, 4.3.3. This is due to insufficient validation on a redirect url. This makes it possible for unauthenticated attackers to redirect users to potentially malicious sites if they can successfully trick them into performing an action.



Vulnerability Details for WP OAuth Server (OAuth Authentication)

Software Type Plugin
Software Slug oauth2-provider (view on wordpress.org)
Patched? Yes
Remediation Update to version 4.4.0, or a newer patched version
Affected Version
  • <= 4.3.3
Patched Version
  • 4.4.0

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