EUVD-2025-6604

Comprehensive Technical Analysis of EUVD-2025-6604

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2025-6604 is an SQL injection flaw in the Innovación y Cualificación local administration plugin, specifically within the ajax.php file. This vulnerability allows an attacker to execute arbitrary SQL queries by injecting malicious input into several parameters: searchActionsToUpdate, searchSpecialitiesPending, searchSpecialitiesLinked, searchUsersToUpdateProfile, training_action_data, showContinuingTrainingCourses, and showUsersToEdit.

Severity Evaluation:

• Base Score: 9.3 (Critical)
• Base Score Version: 4.0
• Base Score Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

The high base score indicates a critical vulnerability 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)
• Confidentiality Impact (VC): High (H)
• Integrity Impact (VI): High (H)
• Availability Impact (VA): High (H)

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network-Based Attack: The attacker can exploit this vulnerability over the network without needing local access.
• Low Complexity: The attack requires minimal skill and resources to execute.
• No Privileges Required: The attacker does not need any special privileges to exploit this vulnerability.
• No User Interaction: The attack can be carried out without any interaction from the user.

Exploitation Methods:

• SQL Injection: The attacker can inject malicious SQL queries into the vulnerable parameters to manipulate the database.
• Data Exfiltration: The attacker can extract sensitive information from the database.
• Data Manipulation: The attacker can update or delete data, leading to data integrity issues.
• Denial of Service: The attacker can execute queries that disrupt the normal functioning of the database, leading to service unavailability.

3. Affected Systems and Software Versions

Affected Systems:

• All systems running the Innovación y Cualificación local administration plugin.

Software Versions:

• All versions of the ajax.php plugin are affected.

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Patching: Apply the latest security patches provided by the vendor.
• Input Validation: Implement strict input validation and sanitization for all user inputs.
• Parameterized Queries: Use parameterized queries or prepared statements to prevent SQL injection.
• Web Application Firewall (WAF): Deploy a WAF to detect and block malicious SQL injection attempts.

Long-Term Mitigation:

• Regular Security Audits: Conduct regular security audits and code reviews to identify and fix vulnerabilities.
• Security Training: Provide security training for developers to understand and mitigate common vulnerabilities like SQL injection.
• Monitoring and Logging: Implement robust monitoring and logging to detect and respond to suspicious activities.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to European organizations using the Innovación y Cualificación local administration plugin. The potential for data breaches, data manipulation, and service disruptions can have severe consequences, including financial loss, reputational damage, and legal implications under GDPR.

Regulatory Compliance:

• Organizations must ensure compliance with GDPR by protecting personal data and reporting any breaches promptly.
• Failure to address this vulnerability can result in regulatory penalties and legal actions.

6. Technical Details for Security Professionals

Vulnerable Parameters:

• searchActionsToUpdate
• searchSpecialitiesPending
• searchSpecialitiesLinked
• searchUsersToUpdateProfile
• training_action_data
• showContinuingTrainingCourses
• showUsersToEdit

Exploitation Example: An attacker could inject a malicious SQL query into one of the vulnerable parameters, such as:

searchActionsToUpdate=1'; DROP TABLE users; --

This query would delete the users table from the database, causing significant data loss and service disruption.

Detection:

• Log Analysis: Analyze web server logs for unusual SQL query patterns.
• Intrusion Detection Systems (IDS): Deploy IDS to detect and alert on SQL injection attempts.
• Anomaly Detection: Use machine learning algorithms to detect anomalous database activities.

Response:

• Incident Response Plan: Have a well-defined incident response plan to quickly address and mitigate any detected SQL injection attacks.
• Backup and Recovery: Ensure regular backups and have a recovery plan to restore data in case of a successful attack.

References:

• NVD CVE-2025-2199
• INCIBE Advisory

By addressing this vulnerability promptly and effectively, organizations can significantly reduce the risk of data breaches and ensure the integrity and availability of their systems.