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

> Attackers can bypass authentication via empty SHA1 usernames in Staging Sync Server digest auth to control administrative objects.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Yes, since 20 Oct 2025 (CISA KEV)
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Mar 2025
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-h4vh-mhxh-6rrr

## What is CVE-2025-2746?

CVE-2025-2746 is a critical authentication bypass vulnerability in Kentico Xperience, published on 24 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-288 (Authentication Bypass Using an Alternate Path or Channel)

## Which versions are affected by CVE-2025-2746?

It affects 1 product.


Products: Kentico Xperience.

## How do I fix CVE-2025-2746?

No fix has been published for CVE-2025-2746 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 10 Nov 2025.

## Is CVE-2025-2746 being exploited?

Yes. Attackers have exploited CVE-2025-2746 in the wild since at least 20 Oct 2025.

Public exploit code:

- Kentico Xperience 13 CMS - Staging Service Authentication Bypass (WT-2025-0011) (nuclei): http/cves/2025/CVE-2025-2746.yaml

## Other vulnerabilities in Kentico Xperience

- [CVE-2025-2747](https://insights.sbomify.com/CVE-2025-2747/): Kentico Xperience CMS Authentication Bypass Using an Alternate Path or Channel (critical 9.8, exploited in the wild)
- [CVE-2019-10068](https://insights.sbomify.com/CVE-2019-10068/): Kentico Xperience Deserialization of Untrusted Data (critical 9.8, exploited in the wild)
- [CVE-2025-2749](https://insights.sbomify.com/CVE-2025-2749/): Kentico Xperience Path Traversal (high 7.2, exploited in the wild)
- [CVE-2017-17736](https://insights.sbomify.com/CVE-2017-17736/): Missing authorization in n/a (critical 9.8)
- [CVE-2019-12102](https://insights.sbomify.com/CVE-2019-12102/): Missing authorization in n/a (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-2746 and fix it if it is affected.

What it is: CVE-2025-2746 is a critical authentication bypass vulnerability in Kentico Xperience, published on 24 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2025-2746 in the wild since at least 20 Oct 2025.

Affected product: Kentico Xperience. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-2746/ (Markdown: https://insights.sbomify.com/CVE-2025-2746/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-2746
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-2746
- OSV: https://osv.dev/vulnerability/CVE-2025-2746

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-2746/
Summaries are generated and may contain mistakes; the official description above is the record.