EUVD-2025-22551

Comprehensive Technical Analysis of EUVD-2025-22551

1. Vulnerability Assessment and Severity Evaluation

Vulnerability Description: The vulnerability in XWiki Platform allows for SQL injection through the sort parameter in the getdeleteddocuments.vm file. This flaw exists in versions 9.4-rc-1 through 16.10.5 and 17.0.0-rc-1 through 17.2.2. The issue arises because the sort parameter is directly injected into an SQL query as an ORDER BY value without proper sanitization.

Severity Evaluation: The vulnerability has a base score of 9.3 according to CVSS 4.0. This high score is due to the following factors:

• Attack Vector (AV): Network (N)
• Attack Complexity (AC): Low (L)
• Privileges Required (PR): None (N)
• User Interaction (UI): None (N)
• Scope (SC): Unchanged (N)
• Confidentiality (VC): High (H)
• Integrity (VI): High (H)
• Availability (VA): High (H)

The high scores in confidentiality, integrity, and availability indicate that an attacker can potentially access, modify, or disrupt sensitive data and system operations.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• SQL Injection: An attacker can craft a malicious SQL query by manipulating the sort parameter in the getdeleteddocuments.vm file. This can lead to unauthorized access to the database, data manipulation, or data extraction.
• Remote Exploitation: Since the attack vector is network-based, an attacker can exploit this vulnerability remotely without needing physical access to the system.

Exploitation Methods:

• Crafting Malicious Requests: An attacker can send specially crafted HTTP requests to the vulnerable endpoint, injecting SQL commands through the sort parameter.
• Automated Tools: Attackers may use automated tools to scan for vulnerable versions of XWiki Platform and exploit the SQL injection flaw.

3. Affected Systems and Software Versions

Affected Versions:

• XWiki Platform versions 9.4-rc-1 through 16.10.5
• XWiki Platform versions 17.0.0-rc-1 through 17.2.2

Fixed Versions:

• The vulnerability is fixed in versions 16.10.6 and 17.3.0-rc-1.

4. Recommended Mitigation Strategies

Immediate Actions:

• Upgrade: Upgrade to the patched versions (16.10.6 or 17.3.0-rc-1) immediately.
• Patch Management: Implement a robust patch management process to ensure timely updates and patches.

Long-Term Strategies:

• Input Validation: Ensure that all user inputs are properly validated and sanitized.
• Parameterized Queries: Use parameterized queries or prepared statements to prevent SQL injection.
• Web Application Firewalls (WAF): Deploy WAFs to detect and block malicious SQL injection attempts.
• Regular Audits: Conduct regular security audits and code reviews to identify and mitigate similar vulnerabilities.

5. Impact on European Cybersecurity Landscape

Regulatory Compliance:

• Organizations using XWiki Platform must ensure compliance with GDPR and other relevant regulations by addressing this vulnerability promptly.
• Failure to mitigate this vulnerability can result in data breaches, leading to regulatory fines and legal actions.

Cybersecurity Posture:

• The high severity of this vulnerability underscores the importance of maintaining a strong cybersecurity posture.
• European organizations should prioritize vulnerability management and incident response capabilities to protect against such threats.

6. Technical Details for Security Professionals

Vulnerability Details:

• Vulnerable Component: getdeleteddocuments.vm
• Vulnerable Parameter: sort
• Injection Point: The sort parameter is directly used in an SQL ORDER BY clause without proper sanitization.

Exploitation Example: An attacker could send a request with a malicious sort parameter:

GET /getdeleteddocuments.vm?sort=1;DROP TABLE users;--

This could result in the execution of the DROP TABLE users; command, leading to data loss.

Mitigation Code Example: To mitigate this vulnerability, ensure that the sort parameter is properly sanitized:

String sortParam = request.getParameter("sort");
if (sortParam != null && !sortParam.matches("[a-zA-Z0-9_]+")) {
    throw new IllegalArgumentException("Invalid sort parameter");
}

References:

• GitHub Security Advisory
• Commit dfd0744e9c18d24ac66a0d261dc6cafd1c209101
• Commit f502b5d5fd36284a50890ad26d168b7d8dc80bd3
• Jira Issue XWIKI-23093

By addressing this vulnerability promptly and implementing robust security measures, organizations can significantly reduce the risk of SQL injection attacks and protect their data and systems.