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CVE-2025-55730: Escaping Vulnerability in XWiki Remote Macros Enabling Remote Code Execution

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Overview

In today’s digital age, security vulnerabilities, such as CVE-2025-55730, play an increasingly significant role. XWiki Remote Macros, a tool widely used for content migration from Confluence, has been identified as a source of a severe vulnerability. This vulnerability affects versions 1.0 to 1.26.4 of XWiki Remote Macros. It allows remote code execution, a potent exploit that can lead to system compromise or data leakage, thereby threatening the security and privacy of users and organizations. Addressing this vulnerability promptly is critical to maintaining the integrity and security of your systems and data.

Vulnerability Summary

CVE ID: CVE-2025-55730
Severity: Critical (CVSS: 10.0)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: System compromise and potential data leakage

Affected Products

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Product | Affected Versions

XWiki Remote Macros | 1.0 to 1.26.4

How the Exploit Works

The vulnerability CVE-2025-55730 stems from poor input sanitization in XWiki Remote Macros. Specifically, the title in the Confluence paste code macro isn’t properly escaped. As a result, it leaves an opening for an attacker to inject malicious XWiki syntax via the ‘classes’ parameter, leading to remote code execution. This means an attacker can run arbitrary code on the victim’s system, potentially leading to system compromise or data leakage.

Conceptual Example Code

Here’s a conceptual example of how the vulnerability might be exploited. Please note, this is purely illustrative and not intended for malicious use:

POST /xwiki/bin/view/XWiki/Confluence HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
title=<<malicious code>>&classes=<<malicious XWiki Syntax>>

In this example, the attacker sends a POST request with malicious code in the ‘title’ and ‘classes’ parameters, leading to remote code execution on the server hosting XWiki Remote Macros.

Mitigation

The most effective way of mitigating this vulnerability is to apply the vendor patch that was released with version 1.26.5 of XWiki Remote Macros. In the interim, the utilization of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can also serve as temporary mitigation. However, these measures are not a substitute for patching the software as they may not fully protect against all possible exploitation techniques.

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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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