CVE-2025-2747
Kentico Xperience CMS Authentication Bypass Using an Alternate Path or Channel Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 10 November 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 97.17% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 20 October 2025 · due 10 November 2025
- Weakness
- CWE-288
- Affected
- kentico/xperience
- Source
- disclosure@vulncheck.com
EPSS moved from 97.2% on 24 September 2026 to 97.2% on 30 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
CISA notes
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. https://devnet.kentico.com/download/hotfixes ; https://nvd.nist.gov/vuln/detail/CVE-2025-2747
References
- https://devnet.kentico.com/download/hotfixesPatch
- https://github.com/watchtowrlabs/kentico-xperience13-AuthBypass-wt-2025-0011Third Party Advisory
- https://labs.watchtowr.com/bypassing-authentication-like-its-the-90s-pre-auth-rce-chain-s-in-kentico-xperience-cms/Exploit, Third Party Advisory
- https://www.vulncheck.com/advisories/kentico-xperience-staging-sync-server-none-password-type-authentication-bypassThird Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2747US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.