Kentico Xperience Path Traversal Vulnerability
Kentico Xperience contains a path traversal vulnerability that could allow an authenticated user's Staging Sync Server to upload arbitrary data to path relative locations.
Quick answer
Kentico Xperience should be reviewed and updated if it matches the affected versions. The recommended fix is to apply the vendor-supported patched version or the mitigation steps below, then retest the public website with Fixnx.
Who is affected
Affected versions
- Review vendor advisory for affected versions.
Fixed versions
- Apply the latest vendor-supported patched version.
How to fix it
Treat CVE-2025-2749 as an actively exploited Kentico Xperience authenticated remote code execution risk. NVD states that the issue affects Kentico Xperience through 13.0.178 and is tied to path traversal and arbitrary file upload through Staging Sync Server behavior. Apply the Kentico hotfix that moves the deployment beyond the affected 13.0.178 level or a later supported release, and restrict staging functionality to trusted administrators only. If staging or file upload paths were exposed, inspect for uploaded web-accessible files and server-side code execution.
- Inventory every Kentico Xperience deployment, including staging servers, Staging Sync Server configuration, admin URLs, and file upload paths.
- Identify Kentico Xperience versions through 13.0.178 as affected.
- Apply the Kentico hotfix or supported release that remediates CVE-2025-2749 and brings the deployment beyond the affected version range.
- Restrict Staging Sync Server and Kentico administration access to trusted administrator networks, VPN, or private management paths.
- Review staging synchronization permissions and remove unnecessary users with access to staging or file upload capabilities.
- Inspect web roots, media libraries, upload directories, and application directories for unexpected files, scripts, or path traversal artifacts.
- Review Kentico event logs, IIS logs, authentication logs, and filesystem timestamps for suspicious staging or upload activity.
- Rotate administrator credentials and rebuild affected nodes if unauthorized file upload or server-side execution is found.
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Verify the fix
- Confirm Kentico Xperience is patched beyond the affected 13.0.178 level or is on a later supported fixed release.
- Confirm Staging Sync Server and admin endpoints are reachable only from approved networks and accounts.
- Confirm vulnerability management no longer flags CVE-2025-2749 on Kentico hosts.
- Review post-patch logs and filesystem monitoring for new path traversal or unexpected upload attempts.
- Run a Fixnx scan against public Kentico URLs to verify exposed admin and upload surfaces are understood.
Related categories
Trusted references
FAQ
What is affected by CVE-2025-2749?
Kentico Xperience should be checked against the vendor advisory and trusted references linked on this page.
What should I fix first?
Start with internet-facing sites, admin panels, login flows, plugins, themes, modules, packages, and systems that process user-controlled input or sensitive data.
How do I confirm the fix worked?
Apply the patched version or mitigation, clear caches where relevant, retest the affected workflow, and run a new Fixnx scan to verify public website exposure signals.
Why can this risk appear in multiple categories?
A vulnerability can belong to more than one platform or ecosystem. Fixnx keeps one canonical risk page while also listing it in every relevant category.