CVE-2025-2746
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 password handling of empty SHA1 usernames in digest authentication. Authentication bypass allows an attacker to control administrative objects.This issue affects Xperience through 13.0.172.
- 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
- 74.06% probability · 99th 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 73.0% on 24 September 2026 to 74.1% 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-2025-2746
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-digest-password-authentication-bypassThird Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2746US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.