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The CVE-2025-XXXXX vulnerability is a reflected Cross-Site Scripting (XSS) flaw within the page configuration functionality of Liferay Portal and Liferay DXP. The vulnerability exists because the application fails to properly sanitize user-supplied input in the `com_liferay_layout_admin_web_portlet_GroupPagesPortlet_backURL` parameter before including it in the server’s response. When an attacker crafts a malicious URL containing a script payload within this specific parameter and tricks an authenticated victim into clicking it, the script executes within the victim’s browser session in the context of the Liferay application. This allows the attacker to steal session cookies, perform actions on behalf of the user, or deface the application, all without directly compromising the server.
Platform: Liferay Portal/DXP
Version: 7.4.3.102-110
Vulnerability: Reflected XSS
Severity: Moderate
date: 2025-09-29
Prediction: Patch available
What Undercode Say:
`curl -s “https://vulnerable-liferay.com/group/pages?com_liferay_layout_admin_web_portlet_GroupPagesPortlet_backURL=“`
`nmap -p 80,443 –script http-unsafe-output-escaping `
`grep -r “backURL” /liferay/webapps/ROOT/`
How Exploit:
Attacker crafts malicious URL with script in `backURL` parameter. Victim clicks link while authenticated. Script executes with user’s privileges.
Protection from this CVE:
Update to patched versions. Implement Content Security Policy. Sanitize all user input.
Impact:
Session hijacking. Unauthorized actions. Client-side code execution.
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Sources:
Reported By: github.com
Extra Source Hub:
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