Blind SQL Injection in CWS SVGicons

Executive Summary

This vulnerability is an SQL Injection flaw found in the WordPress CWS SVGicons Plugin, versions 1.5.5 and below. It allows attackers with contributor-level privileges to inject malicious SQL commands into the website's database queries without proper neutralization of special elements.

Specifically, it is a Blind SQL Injection vulnerability, meaning attackers can infer information from the database even though they do not see the direct output of their injected queries.

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Detection Guidance

Detecting this SQL Injection vulnerability in the CWS SVGicons plugin (versions <= 1.5.5) on your network or system requires checking for suspicious database queries or monitoring for unusual activity. Since the vulnerability allows blind SQL injection, exploitation may not be immediately visible in application responses but could leave traces in database logs or network traffic.

• Check web server logs for unusual HTTP requests containing SQL keywords (e.g., UNION, SELECT, INSERT, DELETE) or encoded payloads targeting the plugin's endpoints. Example command to search Apache logs: grep -i 'union.*select\|select.*from' /var/log/apache2/access.log
• Monitor database logs for unexpected queries, especially those originating from web application requests. For MySQL, enable general query logging temporarily: SET GLOBAL general_log = 'ON'; SET GLOBAL general_log_file = '/var/log/mysql/mysql-general.log';
• Use a web application firewall (WAF) or intrusion detection system (IDS) to detect SQL injection attempts. Tools like ModSecurity with the OWASP Core Rule Set can help identify malicious payloads.
• Scan your WordPress installation for the vulnerable plugin version. Verify the plugin version via the WordPress admin dashboard or by checking the plugin's readme.txt file: grep 'Stable tag' /path/to/wordpress/wp-content/plugins/cws-svgicons/readme.txt
• Test for the vulnerability using security tools like SQLmap, but only in a controlled environment with permission. Example command: sqlmap -u 'https://example.com/wp-admin/admin-ajax.php?action=cws_svgicons' --data='id=1' --level=3 --risk=3 --dbms=mysql

Note: Blind SQL injection may not produce visible errors, so detection relies on monitoring for delayed responses or side effects (e.g., time-based payloads). Always test in a non-production environment first.

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Impact Analysis

This vulnerability can have a high impact because it allows attackers to interact directly with the website's database, potentially leading to unauthorized data access or manipulation.

Although the severity is considered low priority by Patchstack, the CVSS score of 8.5 indicates a high risk of exploitation, especially in mass-exploit campaigns.

The impact includes possible data leakage, data corruption, or denial of service, which can disrupt website functionality and compromise sensitive information.

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Compliance Impact

This SQL Injection vulnerability in the CWS SVGicons plugin can significantly impact compliance with standards and regulations like GDPR and HIPAA.

• GDPR: The vulnerability allows attackers to interact directly with the database, potentially leading to unauthorized access to sensitive personal data. Under GDPR, organizations must protect personal data from breaches. If exploited, this vulnerability could result in a data breach, triggering mandatory reporting requirements and potential fines for non-compliance.
• HIPAA: For organizations handling protected health information (PHI), this vulnerability could lead to unauthorized access to or exposure of PHI. HIPAA requires strict safeguards to protect such data, and a breach due to this vulnerability could result in violations, penalties, and reputational damage.

Additionally, the lack of an official patch exacerbates compliance risks, as organizations may struggle to mitigate the vulnerability in a timely manner, further violating requirements for maintaining secure systems.

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Mitigation Strategies

Immediate action is recommended to mitigate this vulnerability since there is no official patch available yet.

• Update the CWS SVGicons plugin to a version higher than 1.5.5 if such an update becomes available.
• Seek assistance from your hosting provider or a web developer to implement temporary mitigations or workarounds.

Because the vulnerability requires contributor-level privileges to exploit, reviewing and restricting user permissions may also help reduce risk.

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