What is CVE-2025-2746?

CVE-2025-2746 is a critical-severity vulnerability in Kentico Xperience, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 9.8/10. Published 2025-03-24.

How severe is CVE-2025-2746?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2025-2746 known to be exploited?

Yes. CVE-2025-2746 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-10-20), indicating it is being actively exploited.

Vulnerability in Kentico Xperience

CVE-2025-2746

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 ad…

EPSS: 0.902 (99.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Kentico Xperience — versions 0

Weakness classification (CWE)

CWE-288 — Authentication Bypass Using an Alternate Path or Channel

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2025-10-20. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2025-11-10.

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.

References

labs.watchtowr.com/bypassing-authentication-like-its-the-90s-pre-auth-rce-chain… (technical-description, exploit)
devnet.kentico.com/download/hotfixes (vendor-advisory, patch)
github.com/watchtowrlabs/kentico-xperience13-AuthBypass-wt-2025-0011 (exploit)
www.vulncheck.com/advisories/kentico-xperience-staging-sync-server-digest-passw… (third-party-advisory)

Frequently asked questions

What is CVE-2025-2746?: CVE-2025-2746 is a critical-severity vulnerability in Kentico Xperience, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 9.8/10. Published 2025-03-24.
How severe is CVE-2025-2746?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-2746 known to be exploited?: Yes. CVE-2025-2746 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-10-20), indicating it is being actively exploited.