CVEs / CVE-2025-2746
CVE-2025-2746: Kentico Xperience CMS Authentication Bypass Using an Alternate Path or Channel Vulnerability
- Known exploited in the CISA KEV catalog since 20 Oct 2025
- critical 9.8 CVSS 3.1 (from the CNA)
- EPSS 74% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Kentico Xperience CMS contains an authentication bypass using an alternate path or channel vulnerability that could allow an attacker to control administrative objects.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Kentico Xperience | up to and including 13.0.172 | — |
Exploitation
| In CISA KEV since | 20 Oct 2025 |
|---|---|
| Due date for US federal agencies | 10 Nov 2025 |
| Used in ransomware campaigns | Unknown |
| 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. |
Severity
| CVSS 3.1 | 9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScored by the CNA ([email protected]) |
|---|---|
| Weakness | CWE-288 |
References
- CVE-2025-2746 on NVD
- CVE-2025-2746 in the CISA KEV catalog
- https://devnet.kentico.com/download/hotfixes (cited by CISA)
- https://devnet.kentico.com/download/hotfixes Patch
- https://github.com/watchtowrlabs/kentico-xperience13-AuthBypass-wt-2025-0011 Third 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-bypass Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2746 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.