Open Redirect Affecting admidio/admidio package, versions <5.0.9
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Test your applications- Snyk IDSNYK-PHP-ADMIDIOADMIDIO-16322401
- published30 Apr 2026
- disclosed29 Apr 2026
- creditUnknown
Introduced: 29 Apr 2026
NewCVE-2026-41670 (opens in a new tab)How to fix?
Upgrade admidio/admidio to version 5.0.9 or higher.
Overview
admidio/admidio is a free open source user management system for websites of organizations and groups.
Affected versions of this package are vulnerable to Open Redirect in the handleSSORequest process. An attacker can obtain sensitive user identity attributes and impersonate users by submitting a crafted SAML AuthnRequest with a malicious AssertionConsumerServiceURL, causing the SAML response to be sent to an attacker-controlled endpoint. This is only exploitable if the attacker knows the Entity ID of a registered service provider client, which is often publicly accessible.