CVE-2025-2749: Kentico Xperience path traversal and RCE in Staging Sync Server

CVE-2025-2749 · Severity: critical · CVSS 7.2 · Exploited in the wild · Published 2026-04-20

Kentico Xperience, a digital experience and content management platform, contains a security flaw in its staging synchronization component. An attacker with administrative or staging credentials can upload malicious files to unauthorized locations on the server. This can lead to a complete takeover of the web server, allowing the attacker to steal data, modify website content, or disrupt business operations.

Technologies: Kentico Xperience. Vendors: Kentico.

Quick answers

Is CVE-2025-2749 exploited in the wild?
Yes. CVE-2025-2749 is known to be exploited in the wild, first recorded on 20 April 2026. Treat it as urgent.
How severe is CVE-2025-2749?
Critical severity, with a CVSS score of 7.2, published 20 April 2026.
Which products and versions are affected?
Kentico Xperience Up to and including 13.0.178.
Is there a fix for CVE-2025-2749?
A patch was published on 2025-10-17: Vendor hotfixes identified Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2025-2749 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2025-2749?
Check whether you run Kentico Xperience or Kentico Xperience at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A path traversal vulnerability (CWE-22) and unrestricted file upload (CWE-434) exist within the Kentico Xperience Staging Sync Server. The flaw allows an authenticated user to bypass directory restrictions and upload arbitrary data to relative path locations on the server. By uploading executable content (such as web shells) to web-accessible directories, an attacker can achieve remote code execution (RCE). While the vulnerability requires authentication (High privileges), it has been observed being exploited in the wild, potentially as part of an exploit chain. Hotfixes are available from the vendor for affected versions up to 13.0.178.

Affected products

  • Kentico Xperience Up to and including 13.0.178

Timeline

  • 2025-03-24: disclosed: Initial NVD publication date
  • 2025-10-17: patched: Vendor hotfixes identified
  • 2026-04-20: kev added: Added to CISA Known Exploited Vulnerabilities catalog
  • 2026-04-20: exploited: Confirmed active exploitation in the wild

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