Known exploited vulnerability
CVE-2025-2749
The short answer
CVE-2025-2749 affects Kentico Xperience and is rated high (CVSS 7.2). CISA added it to the Known Exploited Vulnerabilities catalog on 2026-04-20: attackers are using it, so patch it first. The vendor has linked a patch.
What it is
An authenticated remote code execution in Kentico Xperience allows authenticated users Staging Sync Server to upload arbitrary data to path relative locations. This results in path traversal and arbitrary file upload, including content that can be executed server side leading to remote code execution.This issue affects Kentico Xperience through 13.0.178.
Severity
7.2 high
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Apr 20, 2026
Federal due date May 4, 2026
EPSS, next 30 days
4.0%
Higher than 91% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected products
Xperience. NVD's record lists the exact affected versions.
References
- devnet.kentico.com/download/hotfixes Patch
- labs.watchtowr.com/bypassing-authentication-like-its-the-90s-pre-auth-rce-chain-s-in-kentico-xperience-cms/ ExploitThird Party Advisory
- www.vulncheck.com/advisories/kentico-xperience-staging-media-file-upload-authenticated-rce Third Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2749 US Government Resource
Questions
Is CVE-2025-2749 being exploited?
Yes. CISA added CVE-2025-2749 to its Known Exploited Vulnerabilities catalog on 2026-04-20, with a federal remediation due date of 2026-05-04.
How do I fix CVE-2025-2749?
CISA's required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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