Known exploited vulnerability
CVE-2025-2747
The short answer
CVE-2025-2747 affects Kentico Xperience and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2025-10-20: attackers are using it, so patch it first. The vendor has linked a patch.
What it is
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.
Weakness: CWE-288.
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Oct 20, 2025
Federal due date Nov 10, 2025
EPSS, next 30 days
97%
Higher than 100% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- 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
- github.com/watchtowrlabs/kentico-xperience13-AuthBypass-wt-2025-0011 Third Party Advisory
- 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-sync-server-none-password-type-authentication-bypass Third Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2747 US Government Resource
Questions
Is CVE-2025-2747 being exploited?
Yes. CISA added CVE-2025-2747 to its Known Exploited Vulnerabilities catalog on 2025-10-20, with a federal remediation due date of 2025-11-10.
How do I fix CVE-2025-2747?
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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