EUVD-2025-4376

Comprehensive Technical Analysis of EUVD-2025-4376

1. Vulnerability Assessment and Severity Evaluation

Vulnerability Description: The vulnerability affects specific versions of Mattermost, a popular open-source messaging platform. The issue arises from the failure to use prepared statements in SQL queries related to the reordering of boards categories. This oversight allows for SQL injection attacks, enabling an attacker to retrieve data from the database.

Severity Evaluation: The vulnerability has a CVSS base score of 9.6, which is considered critical. The CVSS vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N indicates the following:

• Attack Vector (AV): Network (N) - The vulnerability can be exploited remotely over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal skill and resources.
• Privileges Required (PR): Low (L) - The attacker needs low-level privileges to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is required for the attack to succeed.
• Scope (S): Changed (C) - The vulnerability affects a different security scope.
• Confidentiality (C): High (H) - The vulnerability allows for unauthorized access to sensitive data.
• Integrity (I): High (H) - The vulnerability allows for unauthorized modification of data.
• Availability (A): None (N) - The vulnerability does not affect the availability of the system.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• SQL Injection: An attacker can craft malicious input to the boards reordering functionality, leading to SQL injection. This can be done through specially crafted board categories.
• Data Exfiltration: Once the SQL injection is successful, the attacker can retrieve sensitive data from the database, including user information, messages, and other confidential data.

Exploitation Methods:

• Crafting Malicious Input: The attacker can send specially crafted SQL queries through the boards reordering feature.
• Automated Tools: Attackers may use automated tools to scan for vulnerable Mattermost instances and exploit the SQL injection vulnerability.

3. Affected Systems and Software Versions

Affected Versions:

• Mattermost 10.4.x <= 10.4.1
• Mattermost 9.11.x <= 9.11.7
• Mattermost 10.3.x <= 10.3.2
• Mattermost 10.2.x <= 10.2.2

Unaffected Versions:

• Versions later than 10.4.1, 9.11.7, 10.3.2, and 10.2.2 are presumed to be patched against this vulnerability.

4. Recommended Mitigation Strategies

Immediate Actions:

• Patching: Upgrade to the latest version of Mattermost that includes the security fix for this vulnerability.
• Input Validation: Implement strict input validation and sanitization for all user inputs, especially those related to boards reordering.
• Prepared Statements: Ensure that all SQL queries use prepared statements to prevent SQL injection.

Long-Term Strategies:

• Regular Updates: Maintain a regular update schedule for all software, including Mattermost, to ensure that the latest security patches are applied.
• Security Audits: Conduct regular security audits and penetration testing to identify and mitigate potential vulnerabilities.
• Monitoring: Implement monitoring and logging to detect and respond to any suspicious activities related to SQL injection attempts.

5. Impact on European Cybersecurity Landscape

Regulatory Compliance:

• GDPR: Organizations using Mattermost must ensure that they comply with GDPR regulations, as unauthorized data access can lead to significant fines and legal consequences.
• NIS Directive: Critical infrastructure organizations must adhere to the NIS Directive, which mandates robust cybersecurity measures to protect against such vulnerabilities.

Broader Implications:

• Data Breaches: The vulnerability can lead to data breaches, affecting the confidentiality and integrity of sensitive information.
• Reputation Damage: Organizations experiencing data breaches due to this vulnerability may face reputational damage and loss of customer trust.

6. Technical Details for Security Professionals

Vulnerability Details:

• SQL Injection Point: The vulnerability is located in the SQL queries used for reordering boards categories.
• Exploitation: The attacker can inject malicious SQL code by manipulating the input parameters for boards reordering.

Detection and Response:

• Log Analysis: Monitor database logs for unusual SQL queries that may indicate an SQL injection attempt.
• Intrusion Detection Systems (IDS): Deploy IDS to detect and alert on suspicious network activities related to SQL injection.
• Incident Response: Have an incident response plan in place to quickly address and mitigate any detected SQL injection attempts.

References:

• NVD Entry: CVE-2025-24490
• Mattermost Security Updates: Mattermost Security Updates

By addressing this vulnerability promptly and implementing robust security measures, organizations can protect their data and maintain compliance with European cybersecurity regulations.