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The CVE-2025-45104 vulnerability is a reflected Cross-Site Scripting (XSS) flaw within the Calendar Events functionality of Liferay Portal and Liferay DXP. The vulnerability exists due to improper neutralization of user-controlled input before it is rendered in the web page. Specifically, the application fails to adequately sanitize the (1) First Name, (2) Middle Name, and (3) Last Name fields of a user profile when these values are displayed within the context of a calendar event. An attacker can exploit this by crafting a malicious payload containing JavaScript code and injecting it into one of these name fields. When a legitimate user, such as an administrator, views a calendar event where the attacker is a participant, the malicious script is executed in the victim’s browser session. This allows the attacker to steal the user’s session cookies, impersonate the user, or perform actions on their behalf, all within the context of the vulnerable Liferay Portal application.
Platform: Liferay Portal/DXP
Version: 7.4.3.35-7.4.3.111
Vulnerability: Reflected XSS
Severity: Moderate
date: 2025-10-09
Prediction: Patch available
What Undercode Say:
curl -s "https://portal.example.com/web/guest/calendar" | grep -i "script"
// Example Payload for 'Last Name' field: Smith<script>alert(document.cookie)</script>
nmap -p 80,443 --script http-domxref-xss target.example.com
How Exploit:
Craft malicious script payload.
Inject into First/Middle/Last Name.
Lure victim to view calendar.
Script executes in victim’s context.
Protection from this CVE
Apply vendor patch.
Implement strict input sanitization.
Use Content Security Policy (CSP).
Encode user input on output.
Impact:
Session hijacking.
Privilege escalation.
Arbitrary action execution.
🎯Let’s Practice Exploiting & Learn Patching For Free:
Sources:
Reported By: github.com
Extra Source Hub:
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