Kentico · Xperience CMS
CVE-2025-2746
Kentico Xperience <= 13.0.172 Staging Sync Server Digest Password Authentication Bypass
What it is
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.
CISA: Kentico Xperience CMS contains an authentication bypass using an alternate path or channel vulnerability that could allow an attacker to control administrative objects.
What 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.
Deadline for US federal agencies: November 10, 2025
- Added to the CISA list
- October 20, 2025
- Published
- March 24, 2025
- Severity
- Critical 9.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 74% in the top 0.5% of all known vulnerabilities
- Weakness
- CWE-288
- More details
- NVD · CVE.org · CISA
All references (4)
- https://devnet.kentico.com/download/hotfixes
- https://labs.watchtowr.com/bypassing-authentication-like-its-the-90s-pre-auth-rce-chain-s-in-kentico-xperienc…
- https://github.com/watchtowrlabs/kentico-xperience13-AuthBypass-wt-2025-0011
- https://www.vulncheck.com/advisories/kentico-xperience-staging-sync-server-digest-password-authentication-byp…
More exploited flaws from Kentico
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Oct 20, 2025 | Authentication Bypass Using an Alternate Path or Channel | Xperience CMS | Critical 9.8 | 97% |
| Apr 20, 2026 | Xperience Path Traversal | Kentico Xperience | High 7.2 | 4.0% |
| Mar 25, 2022 | Deserialization of Untrusted Data | Xperience | Critical 9.8 | 95% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.