EUVD-2025-9092

Comprehensive Technical Analysis of EUVD-2025-9092

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2025-9092, also known as CVE-2025-30876, pertains to an SQL Injection flaw in the Ads by WPQuads plugin for WordPress. The CVSS (Common Vulnerability Scoring System) base score of 9.3 indicates a critical severity level. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L breaks down as follows:

• AV:N - Attack Vector: Network, meaning the vulnerability is exploitable remotely.
• AC:L - Attack Complexity: Low, indicating that the attack does not require specialized conditions.
• PR:N - Privileges Required: None, meaning no privileges are needed to exploit the vulnerability.
• UI:N - User Interaction: None, indicating that no user interaction is required.
• S:C - Scope: Changed, meaning the vulnerability affects a component that is different from the vulnerable component.
• C:H - Confidentiality: High, indicating a complete loss of confidentiality.
• I:N - Integrity: None, indicating no direct impact on integrity.
• A:L - Availability: Low, indicating a low impact on availability.

This high severity score underscores the critical nature of the vulnerability, which can lead to significant data breaches and unauthorized access.

2. Potential Attack Vectors and Exploitation Methods

SQL Injection vulnerabilities are typically exploited by injecting malicious SQL code into input fields that are not properly sanitized. Potential attack vectors include:

• Form Inputs: Attackers can input malicious SQL queries into form fields.
• URL Parameters: Malicious SQL code can be injected via URL parameters.
• HTTP Headers: SQL injection can be attempted through HTTP headers.

Exploitation methods may involve:

• Union-Based SQL Injection: Combining the results of two SELECT statements to extract data.
• Error-Based SQL Injection: Exploiting error messages to gain information about the database structure.
• Blind SQL Injection: Using true/false responses to infer database information.

3. Affected Systems and Software Versions

The vulnerability affects the Ads by WPQuads plugin for WordPress, specifically versions from n/a through 2.0.87.1. Any WordPress site using this plugin within the specified version range is at risk.

4. Recommended Mitigation Strategies

To mitigate the risk associated with this vulnerability, the following steps are recommended:

• Update the Plugin: Immediately update the Ads by WPQuads plugin to the latest version that addresses the vulnerability.
• 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 Firewall (WAF): Implement a WAF to detect and block SQL injection attempts.
• Regular Audits: Conduct regular security audits and vulnerability assessments.
• Monitoring: Implement monitoring to detect any unusual database activities.

5. Impact on European Cybersecurity Landscape

The presence of such a critical vulnerability in a widely-used WordPress plugin highlights the importance of robust cybersecurity measures within the European digital ecosystem. Given the prevalence of WordPress and its plugins, this vulnerability could have far-reaching implications, including:

• Data Breaches: Unauthorized access to sensitive data.
• Compliance Issues: Potential violations of GDPR and other data protection regulations.
• Reputation Damage: Loss of trust among users and stakeholders.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Vulnerability Type: SQL Injection
• Affected Component: Ads by WPQuads plugin for WordPress
• Exploitability: High, due to low attack complexity and no required privileges.
• Detection: Use tools like SQLMap for automated detection of SQL injection vulnerabilities.
• Remediation: Ensure all SQL queries are parameterized and inputs are sanitized. Regularly update and patch all software components.

Conclusion

The SQL Injection vulnerability in the Ads by WPQuads plugin (EUVD-2025-9092) is a critical issue that requires immediate attention. Organizations should prioritize updating the plugin, implementing robust input validation, and using security tools to mitigate the risk. The broader impact on the European cybersecurity landscape underscores the need for continuous vigilance and proactive security measures.

References

• NVD Entry
• Patchstack Analysis