CVE-2025-2746
CriticalExploitedPublic exploitAn authentication bypass vulnerability in Kentico Xperience allows authentication bypass via the Staging Sync Server password handling of empty SHA1 usernames in digest authentication.
Published Mar 24, 2025 · Updated Feb 26, 2026
Key Facts
Patch immediately- CVE-2025-2746 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Xperience (Kentico).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 20, 2025. Public exploit code is available.
- EPSS estimates a 74% probability of exploitation in the next 30 days.
- Fixed versions are available, including Xperience <=13.0.172, Xperience 13.0.172.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
74%
Higher than 99.4% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2025-2746 brief as a PDF
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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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Oct 20, 2025 | Nov 10, 2025 | Not reported |
| Industry KEV feed | Oct 20, 2025 | Nov 10, 2025 | Not reported |
| CIRCL KEV | Oct 20, 2025 | Nov 10, 2025 | Not reported |
| ENISA EUVD | Oct 20, 2025 | n/a | Not reported |
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.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| XperienceKentico | See advisory | 13.0.172 |
Patched Releases
Xperience
<=13.0.172
Timeline
Publicly disclosed
Mar 24, 2025
Added to CISA KEV
Oct 20, 2025
Added to Industry KEV feed
Oct 20, 2025
Added to CIRCL KEV
Oct 20, 2025
Added to ENISA EUVD
Oct 20, 2025
Last updated
Feb 26, 2026
Weakness Type
- CWE-288 Authentication Bypass Using an Alternate Path or Channel
References
- advisoryhttps://github.com/watchtowrlabs/kentico-xperience13-AuthBypass-wt-2025-0011
- advisoryhttps://www.vulncheck.com/advisories/kentico-xperience-staging-sync-server-digest-password-authentication-bypass
- patchhttps://devnet.kentico.com/download/hotfixes
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
An authentication bypass vulnerability in Kentico Xperience allows authentication bypass via the Staging Sync Server password handling of empty SHA1 usernames in digest authentication.
Affected: Xperience (Kentico). The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 20, 2025.
Yes. It was added on Oct 20, 2025 with a federal remediation due date of Nov 10, 2025.
Public exploit code is available.
Fixed versions are available, including Xperience <=13.0.172, Xperience 13.0.172.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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