CVE-2025-2746
KEVKentico Xperience CMS Authentication Bypass Using an Alternate Path or Channel Vulnerability
Description
Kentico Xperience CMS contains an authentication bypass using an alternate path or channel vulnerability that could allow an attacker to control administrative objects.
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HPublishedMar 24, 2025
Last modifiedJun 17, 2026
Added to KEVOct 20, 2025
Remediation dueNov 10, 2025
References
- devnet.kentico.com/download/hotfixesPatch
- github.com/watchtowrlabs/kentico-xperience13-AuthBypass-wt-2025-0011Third Party Advisory
- labs.watchtowr.com/bypassing-authentication-like-its-the-90s-pre-auth-rce-chain-s-in-kentico-xperience-cms/ExploitThird Party Advisory
- vulncheck.com/advisories/kentico-xperience-staging-sync-server-digest-password-authentication-bypassThird Party Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2746US Government Resource
0 recent articles mention this CVE
86
Risk assessment · Critical
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 350 days
- CVSS
- 9.8 CRITICAL
- EPSS (30-day exploit probability)
- 74.1% · top 1% of all CVEs
- Weakness
- CWE-288
- Attack vector
- Network, remotely reachable
- Preconditions
- No privileges and no user interaction
Recommended actions
- 1.Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
- 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.