CVE-2025-2749
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.
do firstApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Can a WAF block it? Yes. Path traversal sends `../` sequences in the request, which WAF rules catch, including the common encodings.
Also consider: canonical path validation · MIME sniff · sandbox storage
Based on the weakness type only; no CVE-specific evidence yet. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.
Is CVE-2025-2749 being exploited?
Yes. CVE-2025-2749 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2025-2749?
CVE-2025-2749 is rated High with a CVSS score of 7.2. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2025-2749?
Yes. A fix has been recorded for CVE-2025-2749. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2025-2749 affect?
CVE-2025-2749 affects kentico:xperience. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
- affected<= 13.0.178
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.
cisa ssvc
- exploitation
- active
- automatable
- no
- technical impact
- total
Assessed by CISA 20 Apr 2026 (SSVC 2.0.3).
timeline
- 24 Mar 2025Published
- 20 Apr 2026Added to CISA KEV (exploited in the wild) · 391 days (about 1 year) later
- 20 Apr 2026CISA SSVC assessment: exploitation active · same day later
- 21 Apr 2026CVE record last updated · 1 day later
- 4 May 2026CISA remediation due date (US federal agencies) · 13 days later
- 2 Nov 2026Analysed by vulneraibility.com · 183 days (about 6 months) later
- Advisoryvulncheck.com /advisories/kentico-xperience-staging-media-file-upload-authenticated-rce
- Patchdevnet.kentico.com /download/hotfixes
- Exploitlabs.watchtowr.com /bypassing-authentication-like-its-the-90s-pre-auth-rce-chain-s-in-kentico-xperi
- Linkcisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2749
sources
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA KEV catalog: exploitation, date added, due date
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.