---
title: "CVE-2025-2746: Kentico Xperience CMS Authentication Bypass Using an Alternate Path or Channel Vulnerability"
url: https://erroneo.us/security/cve/CVE-2025-2746/
description: "CVE-2025-2746 (Kentico Xperience CMS): Exploited in the wild (CISA KEV). An authentication bypass vulnerability in Kentico Xperience allows authentication…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-03-24
date_modified: 2026-02-26
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-2746"
kev: true
cvss: 9.8
epss: 0.74055
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-2746: Kentico Xperience CMS Authentication Bypass Using an Alternate Path or Channel Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run Kentico Xperience CMS. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2025-10-20, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2025-11-10 ; treat that as the outer limit, not the target.
- EPSS 74.1% , percentile 99: FIRST’s model estimates a 74.1% chance of exploitation activity in the next 30 days, higher than 99% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.

## 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.

## Affected products (CVE record)

- Kentico Xperience: <= 13.0.172

## Severity

- VulnCheck CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: added 2025-10-20; federal due date 2025-11-10. Known ransomware use: Unknown.
- CISA 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.
- CISA SSVC assessment: exploitation active , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 74.06% probability of exploitation activity in the next 30 days; percentile 99.

## Sources

- [devnet.kentico.com](https://devnet.kentico.com/download/hotfixes)
- [CVE.org record CVE-2025-2746](https://www.cve.org/CVERecord?id=CVE-2025-2746)
- [NVD entry CVE-2025-2746](https://nvd.nist.gov/vuln/detail/CVE-2025-2746)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2746)
- [labs.watchtowr.com](https://labs.watchtowr.com/bypassing-authentication-like-its-the-90s-pre-auth-rce-chain-s-in-kentico-xperience-cms/)
- [github.com](https://github.com/watchtowrlabs/kentico-xperience13-AuthBypass-wt-2025-0011)
- [vulncheck.com](https://www.vulncheck.com/advisories/kentico-xperience-staging-sync-server-digest-password-authentication-bypass)

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Source page: https://erroneo.us/security/cve/CVE-2025-2746/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt