CVE-2025-55730

Comprehensive Technical Analysis of CVE-2025-55730

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2025-55730

Description: The XWiki Remote Macros, specifically the Confluence Paste Code Macro, contains a vulnerability due to missing escaping of the title parameter. This flaw allows for XWiki syntax injection, which can lead to remote code execution (RCE) for any user with edit permissions on any page.

CVSS Score: 10

Severity Evaluation: A CVSS score of 10 indicates a critical vulnerability. This high score is due to the potential for remote code execution, which can result in complete system compromise. The vulnerability is easily exploitable by any user with edit permissions, making it a significant risk.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated Users: If the XWiki instance allows anonymous edits, unauthenticated users can exploit this vulnerability.
• Authenticated Users: Any user with edit permissions can inject malicious XWiki syntax into the title parameter of the Confluence Paste Code Macro.

Exploitation Methods:

• XWiki Syntax Injection: An attacker can craft a malicious title parameter that includes XWiki syntax designed to execute arbitrary code.
• Remote Code Execution: By injecting XWiki syntax that includes scripting or command execution, an attacker can achieve RCE, leading to full control over the XWiki server.

3. Affected Systems and Software Versions

Affected Software:

• XWiki Remote Macros versions 1.0 through 1.26.4

Unaffected Software:

• XWiki Remote Macros version 1.26.5 and later

Systems:

• Any system running the affected versions of XWiki Remote Macros, particularly those with user-editable content.

4. Recommended Mitigation Strategies

Immediate Actions:

• Upgrade: Immediately upgrade to XWiki Remote Macros version 1.26.5 or later, which includes a fix for this vulnerability.
• Restrict Edit Permissions: Temporarily restrict edit permissions to trusted users only until the upgrade is complete.

Long-Term Strategies:

• Regular Patching: Implement a regular patching and update schedule for all software components.
• Access Control: Enforce strict access controls and limit edit permissions to trusted users.
• Monitoring: Implement monitoring and logging to detect and respond to any suspicious activities.

5. Impact on Cybersecurity Landscape

Broader Implications:

• Widespread Adoption: XWiki is widely used in various organizations, making this vulnerability a significant risk across multiple sectors.
• Supply Chain Risks: Organizations relying on XWiki for documentation and collaboration may face supply chain risks if their partners or vendors are affected.
• Increased Awareness: This vulnerability highlights the importance of proper input validation and escaping in web applications, reinforcing best practices in secure coding.

6. Technical Details for Security Professionals

Vulnerability Details:

• Root Cause: The vulnerability arises from the lack of proper escaping of the title parameter in the Confluence Paste Code Macro.
• Exploitation: An attacker can inject XWiki syntax into the title parameter, which is then executed without proper validation.

Code Reference:

• Vulnerable Code: The issue is located in the ConfluencePasteCodeMacro.xml file at line 435.
• Fix Commit: The fix is available in the commit 049716df415aaf00938a91d618d382777820d2af.

References:

• GitHub Advisory
• Jira Issue
• Vulnerable Code
• Fix Commit

Conclusion: CVE-2025-55730 represents a critical vulnerability in XWiki Remote Macros that can lead to remote code execution. Organizations using affected versions should prioritize upgrading to the patched version and implement robust access controls to mitigate the risk. This vulnerability underscores the importance of secure coding practices and regular software updates in maintaining a strong cybersecurity posture.