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The CVE-2025-45713 vulnerability chain in Liferay Portal stems from a failure to properly sanitize user-supplied input before rendering it in the Notifications widget. The widget dynamically displays content, such as user names and content flagging reasons, to other users. An attacker can exploit this by injecting malicious JavaScript payloads into specific text fields, including a user’s First, Middle, or Last Name, the “Other Reason” field for flagging content, or the name of the content being flagged. When the Notifications widget subsequently displays this unsanitized input, the embedded script executes in the victim’s browser session. This allows the attacker to perform actions on behalf of the victim, such as session hijacking or unauthorized content modification, without the need for direct code execution on the server.
Platform: Liferay Portal/DXP
Version: 7.4.3.102-111
Vulnerability: Multiple XSS
Severity: Moderate
date: 2025-10-08
Prediction: Patch available
What Undercode Say:
curl -s "https://api.github.com/advisories" | jq '.[] | select(.severity=="moderate")'
<script>alert('XSS')</script>
// Example payload for user name field
document.querySelector('input[name="firstName"]').value = "<img src=x onerror=alert(1)>";
How Exploit:
Malicious script is injected into user-editable fields like ‘First Name’. The payload is stored and then rendered unsanitized in the Notifications widget for other users to see, triggering execution in their browser context.
Protection from this CVE:
Apply vendor patch. Implement output encoding. Use Content Security Policy.
Impact:
Session hijacking. Unauthorized actions. Data theft.
🎯Let’s Practice Exploiting & Learn Patching For Free:
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
