CVE-2025-2746

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.

CVSS v3.1 Score

9.8

CRITICAL

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

CISA Known Exploited Vulnerability

This vulnerability is actively exploited in the wild.

Added: Oct 20, 2025 Remediation due: Nov 10, 2025

Weakness Type (CWE)

CWE-288 CWE-288

Affected Products

Vendor	Product	Versions
kentico	xperience	< 13.0.172

References

Advisories & Patches

https://devnet.kentico.com/download/hotfixes

Exploits

https://labs.watchtowr.com/bypassing-authentication-like-its-the-90s-pre-auth-rce-chain-s-in-kentico-xperience-cms/

Other References

https://github.com/watchtowrlabs/kentico-xperience13-AuthBypass-wt-2025-0011 https://www.vulncheck.com/advisories/kentico-xperience-staging-sync-server-digest-password-authentication-bypass https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2746

Frequently Asked Questions

What is 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 administrative objects.This issue affects Xperience through 13.0.172. It has a CVSS v3.1 base score of 9.8 (CRITICAL). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2025-2746? +

CVE-2025-2746 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-2746? +

CVE-2025-2746 affects products from kentico, specifically: xperience. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-2746? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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