CVE-2025-27676 Overview
CVE-2025-27676 is a Cross-Site Scripting (XSS) vulnerability affecting Vasion Print (formerly PrinterLogic) Virtual Appliance deployments. The flaw resides in the Reports V-2023-002 component and is present in Virtual Appliance Host versions before 22.0.843 running Application versions before 20.0.1923. Attackers can inject malicious script content that executes in the browser context of authenticated administrators or users who view the affected report. The weakness is classified as [CWE-79] and requires user interaction to trigger. Successful exploitation permits session compromise, credential theft, or redirection to attacker-controlled infrastructure hosting further payloads.
Critical Impact
Reflected or stored script content in the Reports interface executes with the privileges of the viewing user, enabling administrator session hijacking within the print management console.
Affected Products
- Vasion Print (formerly PrinterLogic) Virtual Appliance Host before 22.0.843
- Vasion Print (formerly PrinterLogic) Application before 20.0.1923
- PrinterLogic Virtual Appliance deployments using the affected Reports component
Discovery Timeline
- 2025-03-05 - CVE-2025-27676 published to NVD
- 2025-04-08 - Technical analysis published by Pierre Kim in Vasion PrinterLogic Vulnerabilities Blog
- 2025-04 - Advisory circulated through the Full Disclosure Mailing List
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-27676
Vulnerability Analysis
The vulnerability is a Cross-Site Scripting flaw in the Reports V-2023-002 functionality of the Vasion Print web management interface. The application fails to properly encode or sanitize user-supplied input before reflecting it into HTML responses rendered by the Reports view. When a victim loads a crafted URL or report containing attacker-controlled input, the browser interprets the injected payload as executable JavaScript. Because the print management console typically runs on internal infrastructure and is accessed by privileged operators, script execution occurs within a trusted origin. The Pierre Kim XSS Analysis documents the specific injection sink in the Reports module.
Root Cause
The root cause is missing or incomplete output encoding of parameters processed by the Reports V-2023-002 endpoint. Report parameters flow into the rendered HTML without contextual escaping, allowing HTML and JavaScript metacharacters to break out of intended data contexts.
Attack Vector
Exploitation requires network access to the Vasion Print web interface and user interaction. An attacker crafts a URL containing a malicious payload targeting the Reports endpoint and delivers it via phishing or a third-party page. When an authenticated user opens the link, the injected script runs under the appliance's origin and can exfiltrate session cookies, submit forged administrative requests, or pivot to further vulnerabilities documented in the same disclosure set.
No verified public proof-of-concept code is available. Refer to the Pierre Kim technical write-up for injection specifics.
Detection Methods for CVE-2025-27676
Indicators of Compromise
- Web server or reverse proxy access logs containing <script, javascript:, onerror=, or URL-encoded equivalents in requests targeting the Reports V-2023-002 endpoint.
- Unexpected outbound requests from administrator browsers to unknown domains shortly after loading a report URL.
- Anomalous session token reuse from IP addresses outside the normal administrative range.
Detection Strategies
- Inspect HTTP request parameters submitted to Reports endpoints for HTML and JavaScript metacharacters using a web application firewall or reverse proxy filter.
- Deploy Content Security Policy (CSP) reporting on the appliance and alert on report-uri violations originating from the Reports interface.
- Correlate administrator login events with subsequent report access to identify sessions used shortly before suspicious configuration changes.
Monitoring Recommendations
- Enable verbose access logging on the Vasion Print Virtual Appliance and forward logs to a centralized SIEM for retention and search.
- Monitor for administrator account activity outside business hours or from atypical geolocations.
- Track appliance version and patch status across the environment to identify hosts still running builds before 22.0.843 / 20.0.1923.
How to Mitigate CVE-2025-27676
Immediate Actions Required
- Upgrade the Vasion Print Virtual Appliance Host to version 22.0.843 or later and the Application to 20.0.1923 or later.
- Restrict network access to the appliance management interface to trusted administrative subnets or VPN clients.
- Instruct administrators to avoid clicking Reports links received from untrusted sources until patching is complete.
Patch Information
Vasion has addressed the issue in Virtual Appliance Host 22.0.843 with Application 20.0.1923. Refer to the PrinterLogic Security Bulletins for the full remediation notice and upgrade procedure.
Workarounds
- Place the appliance behind a web application firewall configured to block requests containing script tags or event-handler attributes in report parameters.
- Enforce short administrator session lifetimes and require re-authentication before sensitive configuration changes.
- Disable or restrict access to the Reports V-2023-002 view for non-essential users until the upgrade is applied.
# Example: restrict access to the Vasion Print management interface using iptables
iptables -A INPUT -p tcp --dport 443 -s 10.10.20.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
