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CISA KEV · ACTIVELY EXPLOITED
CRITICAL severity

CVE-2025-2747 — Watchtowrlabs

CRITICAL

CVE-2025-2747 is a critical-severity (CVSS 9.8) CWE-288 vulnerability. It is in CISA's Known Exploited Vulnerabilities catalog (added 2025-10-20) — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.

An authentication bypass vulnerability in Kentico Xperience allows authentication bypass via the Staging Sync Server component password handling for the server defined None type. Authentication…

Published
Updated
Affected
1 product
Patched
See advisory
Exploits
None indexed
Exploitation data as of Oct 21, 2026 · OSV.dev, NVD, CISA KEV, FIRST.org (EPSS)

Exploitation Status

Actively exploited in the wild

  • Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2025-10-20. Federal agencies were required to remediate by 2025-11-10.
  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2025-2747.

EPSS Exploitation Probability

via FIRST.org ↗
97.2%probability of exploitation in next 30 days
Very High Risk+5.00%
Lower risk than most CVEs100th percentile — riskier than 100% of all scored CVEsHighest risk
87.1%91.2%95.4%99.5%89.4%90.9%92.2%97.2%May 26Jul 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2025-2747 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).

Where this sits among everything scored

Of 394,803 CVEs with a current EPSS score, this one falls in the ≥ 90% band (highlighted). Counts from FIRST.org, log-scaled.

Description

An authentication bypass vulnerability in Kentico Xperience allows authentication bypass via the Staging Sync Server component password handling for the server defined None type. Authentication bypass allows an attacker to control administrative objects.This issue affects Xperience through 13.0.178.

Affected Products

1 product · 1 configurations
Application
xperiencekentico
≤ 13.0.178
range

Detection & mitigation playbook

Vulnerability
  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    No fixed release is recorded for CVE-2025-2747 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

How to detect CVE-2025-2747

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id cve-2025-2747 -u https://target
Template
Kentico Xperience 13 CMS - Staging Service Authentication Bypass (WT-2025-0006)
Severity
critical
Impact
Unauthenticated attackers can bypass authentication through the Staging Sync Server component by exploiting None-type password handling, gaining control of administrative objects and potentially compromising the entire Kentico CMS.
Remediation
Upgrade to Kentico Xperience version 13.0.179 or later that properly handles Staging Sync Server authentication.

Template by ProjectDiscovery nuclei-templates (DhiyaneshDK), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

An authentication bypass vulnerability in Kentico Xperience allows authentication bypass via the Staging Sync Server component password handling for the server defined None type. Authentication bypass allows an attacker to control administrative objects.This issue affects Xperience through 13.0.178.
O3 Security · Impact-Aware SCA

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CVE-2025-2747: Watchtowrlabs Auth Bypass (KEV)