CVE-2025-2747
Published 2025-03-24 · Updated 2026-06-17 · Source disclosure@vulncheck.com
Summary
CVE-2025-2747 is a critical-severity (CVSS 9.8) vulnerability in Kentico Xperience CMS. CISA added it to the Known Exploited Vulnerabilities catalog on October 20, 2025, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by November 10, 2025. CISA does not currently list it as used in ransomware campaigns. Kentico has 4 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.
All 4 known-exploited Kentico vulnerabilities →Description
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.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: Kentico — Xperience CMS
Name: Kentico Xperience CMS Authentication Bypass Using an Alternate Path or Channel Vulnerability
Date added: 2025-10-20 · Due: 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
- https://devnet.kentico.com/download/hotfixes
- https://github.com/watchtowrlabs/kentico-xperience13-AuthBypass-wt-2025-0011
- https://labs.watchtowr.com/bypassing-authentication-like-its-the-90s-pre-auth-rce-chain-s-in-kentico-xperience-cms/
- https://www.vulncheck.com/advisories/kentico-xperience-staging-sync-server-none-password-type-authentication-bypass
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2747