CVE-2025-6268: Luna Imaging XSS Vulnerability

CVE-2025-6268 Overview

CVE-2025-6268 is a reflected cross-site scripting (XSS) vulnerability in Luna Imaging versions up to 7.5.5.6. The flaw resides in the /luna/servlet/view/search endpoint, where the q request parameter is reflected into responses without proper output encoding [CWE-79]. An unauthenticated remote attacker can craft a malicious URL that executes arbitrary JavaScript in a victim's browser when the link is clicked. The exploit details have been publicly disclosed. According to VulDB, the vendor was contacted before public disclosure but did not respond.

Critical Impact
Attackers can execute arbitrary JavaScript in the context of a Luna Imaging user's session, enabling session token theft, credential harvesting, and unauthorized actions against the application.

Affected Products

Luna Imaging versions up to and including 7.5.5.6
The /luna/servlet/view/search search servlet
Deployments exposing the search interface to untrusted networks

Discovery Timeline

2025-06-19 - CVE-2025-6268 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-6268

Vulnerability Analysis

The vulnerability is a reflected cross-site scripting flaw in the Luna Imaging web application. The search servlet located at /luna/servlet/view/search accepts a query parameter named q and echoes its value back into the HTTP response without sufficient sanitization or contextual output encoding. An attacker who can convince a user to visit a crafted URL causes the browser to render attacker-controlled markup or script within the trusted origin of the Luna Imaging deployment. Because the attack executes in the user's authenticated context, it can be used to exfiltrate session cookies, perform actions on behalf of the victim, or pivot to internal resources accessible from the browser. The attack requires user interaction, typically via a phishing link, and does not require authentication on the attacker's side. The EPSS score is 0.309% (percentile 23.036) as of 2026-07-21.

Root Cause

The root cause is missing or inadequate output encoding when the q parameter is inserted into HTML responses returned by the search servlet. The application trusts user-supplied query input and renders it in a context where JavaScript can be interpreted by the browser, matching the pattern described in Common Weakness Enumeration entry [CWE-79], Improper Neutralization of Input During Web Page Generation.

Attack Vector

The attack vector is network-based and requires user interaction. An attacker crafts a URL of the form https://<victim-host>/luna/servlet/view/search?q=<malicious-payload> containing a JavaScript payload. When a Luna Imaging user follows the link, the payload executes in the browser under the origin of the Luna Imaging server. See the VulDB entry for CVE-2025-6268 for public disclosure details.

// No verified proof-of-concept code is published for CVE-2025-6268.
// See VulDB entry https://vuldb.com/?id.313272 for disclosure details.

Detection Methods for CVE-2025-6268

Indicators of Compromise

Web server access logs containing requests to /luna/servlet/view/search with suspicious characters in the q parameter, such as <script>, onerror=, javascript:, or URL-encoded equivalents like %3Cscript%3E.
Unusually long or heavily URL-encoded values in the q query string parameter.
Referrer headers indicating that users arrived at the search endpoint from external phishing pages or link shorteners.

Detection Strategies

Deploy web application firewall (WAF) rules that inspect the q parameter for reflected XSS payload patterns and block or alert on matches.
Correlate access logs to identify a single client IP submitting many variant XSS payloads against the search servlet, which indicates active probing.
Monitor browser-side Content Security Policy (CSP) violation reports for inline script execution attempts originating from the Luna Imaging origin.

Monitoring Recommendations

Ingest Luna Imaging web server and application logs into a central analytics platform and alert on requests to /luna/servlet/view/search that contain HTML or JavaScript metacharacters.
Track outbound HTTP requests from authenticated user sessions to unexpected external hosts, which may indicate cookie or token exfiltration following successful exploitation.
Alert on sudden spikes in 200 responses from the search endpoint containing user-supplied HTML markup in the response body.

How to Mitigate CVE-2025-6268

Immediate Actions Required

Restrict access to the Luna Imaging /luna/servlet/view/search endpoint to trusted networks or authenticated users via reverse-proxy or firewall controls until a patch is available.
Deploy a WAF rule that blocks requests to the search servlet containing common XSS metacharacters such as <, >, ", ', and javascript: in the q parameter.
Warn users of the Luna Imaging deployment about phishing links referencing the affected search URL and reinforce browser hygiene.

Patch Information

No vendor patch has been published at the time of NVD entry publication. VulDB notes the vendor was contacted but did not respond. Track the VulDB advisory and the Luna Imaging vendor site for updates, and upgrade beyond version 7.5.5.6 as soon as a fixed release becomes available.

Workarounds

Enforce a strict Content Security Policy that disallows inline scripts and restricts script sources to trusted origins, which limits the impact of reflected payloads.
Set the HttpOnly and Secure flags on session cookies to reduce the risk of session theft via injected JavaScript.
Place Luna Imaging behind a reverse proxy that normalizes and encodes the q parameter before it reaches the application, or blocks requests containing HTML tags in query parameters.

bash

# Example NGINX rule blocking obvious XSS payloads on the search endpoint
location /luna/servlet/view/search {
    if ($args ~* "(<|%3C)\s*script|javascript:|onerror=|onload=") {
        return 403;
    }
    proxy_pass http://luna_backend;
}