CVE-2025-2746

Kentico Xperience CMS: Authentication Bypass Using an Alternate Path or Channel

As of , CVE-2025-2746 in Kentico Xperience CMS is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.

Exploited
Yes: CISA listed it on 20 October 2025
US federal deadline
10 November 202521 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
EPSS score
0.73Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
Public exploit
None foundNeither Metasploit nor Exploit-DB lists one.
Fix
Vendor advice: devnet.kentico.comLinks below, from CISA's entry.

What CISA says to do

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA's required action

What the flaw is

Kentico Xperience CMS contains an authentication bypass using an alternate path or channel vulnerability that could allow an attacker to control administrative objects.

CISA's 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.

The CVE record's description, from VulnCheck

CVE published
24 March 2025
Assigned by
VulnCheck
CVSS
9.8 Critical (CVSS 3.1, from the CNA)
CWE-288
Authentication Bypass Using an Alternate Path or Channel
CISA SSVC, exploitation
active
CISA SSVC, automatable
yes
CISA SSVC, technical impact
total

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.

Xperience CMS: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2025-2747Authentication Bypass Using an Alternate Path or ChannelKentico Xperience CMSPatch this weekEPSS 0.970.97

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