Type Vulnerability
Kentico Xperience CMS contains an authentication bypass using an alternate path or channel vulnerability that could allow an attacker to control administrative objects.
Kentico · Auth bypass
Kentico Xperience CMS Authentication Bypass Using an Alternate Path or Channel Vulnerability
CVE-2025-2746
What this means
This is rated critical severity (9.8 out of 10). It is on the known-exploited catalogue, which means attacks using it have already been seen. Ask IT whether Kentico Xperience is in your estate, and treat that as the priority.
Full vendor 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.
Scoring and exploitation
9.8/ 10
CVSS 3.1 base scoreCritical
Exploitable over the network without any account, and no one has to click or open anything. High impact on confidentiality, integrity and availability.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability
Longer bar: easier to attack
Attack vectorNetworkAV:N
Attack complexityLowAC:L
Privileges requiredNonePR:N
User interactionNoneUI:N
ScopeUnchangedS:U
Impact
Longer bar: more harm
ConfidentialityHighC:H
IntegrityHighI:H
AvailabilityHighA:H
- Elevated attack likelihood (~74.1% in 30 days)Model estimate (): a probability signal, not confirmed exploitation
- Exploited in the wild
- Yes — confirmed exploitation (US CISA )
- Not reported
- Listed product
- Kentico Xperience CMS
Weaknesses
CWE-288
Affected products ()
- Kentico Xperience
Show the raw CPE strings (1)
- cpe:2.3:a:kentico:xperience:*:*:*:*:*:*:*:*
References
5 links from the CVE record, grouped by site.
devnet.kentico.com1 link
github.com1 link
- kentico-xperience13-AuthBypass-wt-2025-0011 (opens in a new tab)Third Party Advisory
labs.watchtowr.com1 link
- bypassing-authentication-like-its-the-90s-pre-auth-rce-chain-s-in-kentico-xperience-cms (opens in a new tab)Exploit · Third Party Advisory
vulncheck.com1 link
cisa.gov1 link
- known-exploited-vulnerabilities-catalog (opens in a new tab)US Government Resource