What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2025-10-20
• EPSS: 74.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-03-24 · updated 2026-06-17
• Weakness: CWE-288

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 products

• Kentico Xperience: through 13.0.172

References

• https://devnet.kentico.com/download/hotfixes
• https://github.com/watchtowrlabs/kentico-xperience13-AuthBypass-wt-2025-0011
• https://labs.watchtowr.com/bypassing-authentication-like-its-the-90s-pre-auth-rce-chain-s-in-kentico-xperience-cms/
• 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

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