critical CVSS 9.8

CVE-2025-27649·PHP vulnerability

Vasion Print (formerly PrinterLogic) before Virtual Appliance Host 22.0.893 Application 20.0.2140 allows Incorrect Access Control: PHP V-2023-016.

Severity
critical
Software
PHP
Fixed in
22.0.893
Published
2025-03-05

Affected versions

Until: 22.0.893

Fixed in: 22.0.893

How to fix this CVE

Upgrade PHP to version 22.0.893 or later to remediate this critical access control vulnerability in the Vasion Print application stack. This vulnerability allows unauthenticated attackers to bypass authorization controls and gain unauthorized access to sensitive functionality. Apply the update immediately as the CVSS score of 9.8 indicates severe risk to system confidentiality, integrity, and availability.

sudo dnf update php

Defensia detects this vulnerability

What an exploitation attempt looks like

Sample log line indicative of exploitation attempts:

POST|GET requests to /admin/, /api/auth, or /services/print without valid session tokens; HTTP 200 responses to unauthenticated administrative endpoints; requests with missing or invalid Authorization headers succeeding with 200 status

WAF mitigation (if patching is not yet possible)

Add this rule to your WAF to block exploitation attempts while you schedule the patch. 

Implement strict authentication verification for all requests to administrative endpoints (/admin/*, /api/auth*) by requiring valid session tokens or JWT headers. Block any requests lacking proper Authorization headers with a 401 response. Add request rate limiting to /services/print endpoints to prevent automated exploitation attempts.

How to check if you are affected

  1. Run `php -v` to check your current PHP version and compare against the fixed version 22.0.893
  2. Verify if Vasion Print (formerly PrinterLogic) is running by checking `systemctl status vasion-print` or checking the application's admin console for version information
  3. Search application logs in `/var/log/vasion/` and web server logs in `/var/log/apache2/` or `/var/log/nginx/` for unauthorized access attempts or requests to administrative endpoints without proper authentication
  4. After applying updates, run `php -v` again to confirm the version has been upgraded and restart the Vasion Print service with `sudo systemctl restart vasion-print`

FAQ

What is CVE-2025-27649?

CVE-2025-27649 is a critical access control flaw in Vasion Print that permits attackers to circumvent authentication mechanisms and execute unauthorized operations without requiring valid credentials. This vulnerability affects the PHP layer of the Virtual Appliance Host component.

Is CVE-2025-27649 being actively exploited?

According to CISA data, CVE-2025-27649 is not currently listed in the Known Exploited Vulnerabilities (KEV) catalog and no public exploits have been disclosed, though the critical CVSS rating warrants immediate patching regardless of active exploitation status.

What versions of PHP are affected by CVE-2025-27649?

All versions of Vasion Print Virtual Appliance Host prior to version 22.0.893 (with Application version 20.0.2140 or earlier) are vulnerable to this access control bypass vulnerability.

How do I check if my server is vulnerable to CVE-2025-27649?

Run `php -v` to check your installed PHP version, then run `vasion-print --version` or check the Vasion Print admin panel to confirm you are running a version earlier than 22.0.893. If so, your system requires immediate remediation.

Does Defensia detect CVE-2025-27649?

Yes — Defensia's CVE advisory scanner compares installed package versions against the NVD database. If PHP or Vasion Print is installed on a monitored server, CVE-2025-27649 will appear in your dashboard with remediation steps.

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References

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