CVE-2025-61306: docuForm XSS Vulnerability

CVE-2025-61306 Overview

CVE-2025-61306 is a reflected cross-site scripting (XSS) vulnerability in the dfm-menu_coveragealerts.php component of GmbH Mercury Managed Print Services (docuForm) version 11.11c. The flaw stems from an unfiltered variable that reflects attacker-supplied input directly into the rendered HTTP response. Attackers can craft a malicious URL and trick an authenticated user into clicking it, which causes arbitrary JavaScript to execute in the victim's browser session. The weakness is classified under CWE-79: Improper Neutralization of Input During Web Page Generation.

Critical Impact

Successful exploitation enables session hijacking, credential theft, and unauthorized actions performed in the context of the targeted user's print management session.

Affected Products

• GmbH Mercury Managed Print Services (docuForm) v11.11c
• The dfm-menu_coveragealerts.php component
• Deployments exposing the docuForm web interface to untrusted networks

Discovery Timeline

• 2026-05-11 - CVE-2025-61306 published to NVD
• 2026-05-12 - Last updated in NVD database

Technical Details for CVE-2025-61306

Vulnerability Analysis

The vulnerability resides in the dfm-menu_coveragealerts.php component of the docuForm Mercury Managed Print Services web application. The component accepts request parameters and reflects their values back into the HTTP response without performing output encoding or input sanitization. An attacker who controls the value of the vulnerable parameter can inject HTML and JavaScript that the victim's browser parses and executes.

Reflected XSS requires user interaction, typically through a crafted link delivered via email, chat, or a malicious site. Once the victim loads the link while authenticated to the docuForm interface, the injected script runs with the privileges of that session. Because the scope is changed (S:C), the impact can extend beyond the vulnerable component into other browser-trusted contexts.

Root Cause

The root cause is missing output encoding on a server-rendered variable in dfm-menu_coveragealerts.php. User-controlled data is concatenated into HTML output without context-aware escaping. This pattern allows an attacker to break out of the intended data context and inject executable script content into the DOM.

Attack Vector

The attack is network-based and requires no authentication. The attacker must convince a logged-in user to follow a crafted URL containing the malicious payload in the vulnerable parameter. On render, the payload executes JavaScript that can read cookies accessible to the document, exfiltrate session tokens, perform actions on behalf of the user, or stage further attacks against the print management infrastructure.

No verified public exploit code is available. Technical details referenced by the advisory are hosted at the ZeroBreach Security Resource and a GitHub Gist Repository. Refer to the Docuform Security Overview for vendor information.

Detection Methods for CVE-2025-61306

Indicators of Compromise

• HTTP requests to dfm-menu_coveragealerts.php containing script tags, event handlers (onerror=, onload=), or encoded javascript: URIs in query parameters
• Outbound browser requests from administrator workstations to unfamiliar domains shortly after accessing the docuForm interface
• Web server access logs showing reflected payloads such as %3Cscript%3E, <svg/onload=, or base64-encoded JavaScript in parameter values

Detection Strategies

• Inspect web server and reverse-proxy logs for anomalous query strings on the dfm-menu_coveragealerts.php endpoint
• Deploy a web application firewall (WAF) rule set that matches OWASP CRS XSS signatures targeting reflected payloads
• Correlate authentication events with subsequent requests containing HTML metacharacters in parameter values

Monitoring Recommendations

• Enable verbose HTTP request logging on the docuForm host and forward logs to a centralized SIEM
• Alert on requests where query parameters contain <, >, or script tokens directed at print management endpoints
• Monitor administrator browser sessions for unexpected cross-origin requests originating from the docuForm domain

How to Mitigate CVE-2025-61306

Immediate Actions Required

• Restrict network access to the docuForm Mercury Managed Print Services interface to trusted management networks only
• Instruct administrators to avoid clicking unsolicited links that reference the print management application
• Apply a WAF rule that blocks XSS metacharacters on requests targeting dfm-menu_coveragealerts.php

Patch Information

No vendor patch has been published in the referenced advisory at the time of disclosure. Contact docuForm GmbH directly through the Docuform Security Overview for remediation guidance and updates beyond version 11.11c.

Workarounds

• Place the docuForm web interface behind a reverse proxy that performs input filtering and enforces a strict Content Security Policy (CSP)
• Set the HttpOnly and Secure flags on session cookies to limit script-based token theft
• Require administrators to access the application in isolated browser profiles or dedicated management workstations
• Disable or block external access to dfm-menu_coveragealerts.php until a fixed version is available