CVE-2025-27660 Overview
CVE-2025-27660 is a Cross-Site Scripting (XSS) vulnerability affecting Vasion Print, formerly known as PrinterLogic. The flaw exists in Virtual Appliance Host versions prior to 22.0.843 and Application versions prior to 20.0.1923. The vulnerability is tracked internally as OVE-20230524-0003 and is classified under CWE-79 (Improper Neutralization of Input During Web Page Generation).
A remote attacker can inject malicious script content that executes in a victim's browser session when the crafted payload is rendered. Exploitation requires user interaction, such as clicking a crafted link or visiting an attacker-controlled resource.
Critical Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in the context of an authenticated user's session, enabling session data theft, unauthorized actions, and content manipulation within the print management interface.
Affected Products
- PrinterLogic Vasion Print Virtual Appliance Host prior to version 22.0.843
- PrinterLogic Vasion Print Application prior to version 20.0.1923
- Legacy PrinterLogic deployments running affected Virtual Appliance releases
Discovery Timeline
- 2025-03-05 - CVE-2025-27660 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-27660
Vulnerability Analysis
The vulnerability stems from improper neutralization of user-supplied input rendered by the Vasion Print web interface. The application fails to sanitize or encode input before including it in HTML responses. An attacker can craft input containing JavaScript that executes when a targeted user loads the affected page.
Because the flaw is network accessible and requires no privileges, an unauthenticated attacker can distribute malicious links to targets. User interaction is required for the payload to execute. The scope remains unchanged, and the impact affects confidentiality and integrity within the browser session context, but not availability.
The Exploit Prediction Scoring System (EPSS) currently rates this issue with a low probability of near-term exploitation. No public proof-of-concept code, exploit database entry, or CISA Known Exploited Vulnerabilities listing exists for this CVE at the time of publication.
Root Cause
The root cause is missing output encoding in the affected Vasion Print web interface components. When user-controlled input is reflected or stored and later rendered, the application does not neutralize HTML control characters or JavaScript syntax. This allows script tags and event handler attributes to be interpreted by the browser as executable code rather than displayed as inert text.
Attack Vector
The attack path requires an attacker to craft a URL or input value containing malicious script content. The attacker delivers the payload to a target user through phishing, malicious links, or by planting stored content within the print management application. When the user interacts with the crafted content, the browser executes the attacker's JavaScript within the origin of the Vasion Print interface. This context grants access to session cookies, DOM content, and any actions the user is authorized to perform in the application.
See the PrinterLogic Security Bulletin for vendor-specific technical guidance.
Detection Methods for CVE-2025-27660
Indicators of Compromise
- Web server access logs containing URL parameters with <script>, javascript:, or HTML event handler patterns such as onerror= and onload= directed at Vasion Print endpoints
- Unexpected outbound HTTP requests from browsers of users who accessed the print management interface
- Anomalous session activity, including password changes or configuration edits, following user interaction with external links
Detection Strategies
- Deploy a Web Application Firewall (WAF) rule set that inspects requests to Vasion Print URLs for reflected XSS payload signatures
- Enable Content Security Policy (CSP) reporting to capture blocked script executions and identify injection attempts
- Correlate browser telemetry with print server access logs to identify sessions that loaded scripts from unexpected origins
Monitoring Recommendations
- Monitor authentication and administrative event logs on Vasion Print appliances for anomalous session activity
- Track version banners on internal Virtual Appliance Host instances to identify systems running versions below 22.0.843
- Alert on outbound connections from user endpoints to newly registered domains shortly after Vasion Print interface access
How to Mitigate CVE-2025-27660
Immediate Actions Required
- Upgrade Vasion Print Virtual Appliance Host to version 22.0.843 or later and the Application to 20.0.1923 or later
- Inventory all PrinterLogic and Vasion Print deployments across the environment to confirm patch status
- Restrict access to the Vasion Print management interface to trusted administrative networks where feasible
- Advise administrators and users to avoid clicking untrusted links referencing the print management console
Patch Information
Vasion has addressed the vulnerability in Virtual Appliance Host version 22.0.843 and Application version 20.0.1923. Refer to the PrinterLogic Security Bulletin for the full release notes and upgrade procedures.
Workarounds
- Enforce a strict Content Security Policy that disallows inline scripts on the Vasion Print interface until patching is complete
- Segment the print management appliance from general user network access using firewall rules
- Require multi-factor authentication for administrative accounts to reduce impact of session compromise
# Verify installed Vasion Print Virtual Appliance version
cat /etc/printerlogic/version
# Confirm upgrade to patched release
# Expected: Virtual Appliance Host >= 22.0.843, Application >= 20.0.1923
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
