What is CVE-2025-2747?

CVE-2025-2747 is a critical-severity vulnerability in Kentico Xperience, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 9.8/10. Published 2025-03-24.

How severe is CVE-2025-2747?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2025-2747 known to be exploited?

Yes. CVE-2025-2747 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-10-20), indicating it is being actively exploited.

Vulnerability in Kentico Xperience

CVE-2025-2747

An authentication bypass vulnerability in Kentico Xperience allows authentication bypass via the Staging Sync Server component password handling for the server defined None type. Authentication bypass allows an attacker to control administrative objects.This issue affects Xperience through 13.0.178.

Published 2025-03-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.972 (99.9th percentile), scored 2026-10-19.

Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 99.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.925 · newest: 0.972 · change: +0.047

Affected products

Kentico Xperience — versions 0

Weakness classification (CWE)

CWE-288 — Authentication Bypass Using an Alternate Path or Channel

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2025-10-20. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2025-11-10.

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.

References

labs.watchtowr.com/bypassing-authentication-like-its-the-90s-pre-auth-rce-chain… (Exploit, technical-description, Third Party Advisory, exploit)
devnet.kentico.com/download/hotfixes (vendor-advisory, Patch, patch)
github.com/watchtowrlabs/kentico-xperience13-AuthBypass-wt-2025-0011 (Third Party Advisory, exploit)
www.vulncheck.com/advisories/kentico-xperience-staging-sync-server-none-passwor… (Third Party Advisory, third-party-advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2025-2747?: CVE-2025-2747 is a critical-severity vulnerability in Kentico Xperience, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 9.8/10. Published 2025-03-24.
How severe is CVE-2025-2747?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-2747 known to be exploited?: Yes. CVE-2025-2747 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-10-20), indicating it is being actively exploited.