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CVE-2025-2794: Denial of Service Vulnerability in Kentico Xperience

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Overview

CVE-2025-2794 represents a critical vulnerability located in the Kentico Xperience software. This vulnerability allows an unauthenticated attacker to exploit an unsafe reflection, thereby terminating the current process and initiating a Denial-of-Service (DoS) condition. This flaw is particularly concerning as it could potentially compromise systems or lead to data leakage.

Vulnerability Summary

CVE ID: CVE-2025-2794
Severity: High (CVSS: 7.5)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Denial-of-Service, potential system compromise, and possible data leakage.

Affected Products

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Product | Affected Versions

Kentico Xperience | Versions up to 13.0.180

How the Exploit Works

The exploit works by utilizing an unsafe reflection vulnerability in Kentico Xperience. An unauthenticated attacker can send a specially crafted request to the Kentico Xperience, which the system processes unsafely, leading to the termination of the current process and triggering a Denial-of-Service (DoS) condition.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited:

POST /unsafe_reflection HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "kill_process" }

In this example, the attacker sends a malicious POST request to the ‘/unsafe_reflection’ endpoint, with a payload designed to trigger the unsafe reflection vulnerability (`”kill_process”`) causing the server to terminate the current process, leading to a Denial-of-Service condition.

Mitigation

Users are advised to apply the vendor patch as soon as it becomes available. As a temporary mitigation step, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help detect and prevent exploitation of this vulnerability.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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