Description
The Email Subscribers by Icegram Express plugin for WordPress is vulnerable to SQL Injection via the ‘hash’ parameter in all versions up to, and including, 5.7.20 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
EPSS Score:
80%
Comprehensive Technical Analysis of EUVD-2024-32845
1. Vulnerability Assessment and Severity Evaluation
The vulnerability in the Email Subscribers by Icegram Express plugin for WordPress, identified as EUVD-2024-32845, is an SQL Injection vulnerability. This issue arises due to insufficient escaping of the user-supplied 'hash' parameter and inadequate preparation of the existing SQL query. The severity of this vulnerability is rated with a Base Score of 9.8 using CVSS 3.1, which is considered critical. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H indicates that the vulnerability can be exploited remotely (AV:N), requires low complexity (AC:L), does not require any privileges (PR:N) or user interaction (UI:N), and has a high impact on confidentiality, integrity, and availability (C:H/I:H/A:H).
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector for this vulnerability is SQL Injection, which can be executed by unauthenticated attackers. The attacker can manipulate the 'hash' parameter to inject malicious SQL code into the existing queries. This can lead to several exploitation methods:
- Data Exfiltration: Attackers can extract sensitive information from the database, including user credentials, personal data, and other confidential information.
- Data Manipulation: Attackers can modify database entries, leading to data integrity issues.
- Unauthorized Access: Attackers can gain unauthorized access to the database, potentially leading to further exploitation of the system.
- Denial of Service: Attackers can execute SQL commands that disrupt the normal operation of the database, leading to a denial of service.
3. Affected Systems and Software Versions
The vulnerability affects all versions of the Email Subscribers by Icegram Express plugin up to and including version 5.7.20. Any WordPress site using this plugin within the affected version range is at risk.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following strategies are recommended:
- Update the Plugin: Immediately update the Email Subscribers by Icegram Express plugin to a version higher than 5.7.20, if available.
- Input Validation and Sanitization: Ensure that all user inputs are properly validated and sanitized to prevent SQL Injection attacks.
- Prepared Statements: Use prepared statements with parameterized queries to separate SQL code from data, reducing the risk of SQL Injection.
- Web Application Firewall (WAF): Implement a WAF to detect and block SQL Injection attempts.
- Regular Security Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security issues.
- Monitoring and Logging: Enable comprehensive logging and monitoring to detect and respond to any suspicious activities.
5. Impact on European Cybersecurity Landscape
The impact of this vulnerability on the European cybersecurity landscape is significant due to the widespread use of WordPress and its plugins. Many organizations, including small businesses, educational institutions, and government agencies, rely on WordPress for their web presence. The exploitation of this vulnerability can lead to data breaches, financial losses, and reputational damage. Given the high EPSS score of 80, the likelihood of exploitation is substantial, making it a critical concern for European cybersecurity.
6. Technical Details for Security Professionals
For security professionals, the following technical details are essential:
- Vulnerable Parameter: The 'hash' parameter in the plugin is vulnerable to SQL Injection.
- Exploitation Technique: Attackers can inject SQL code by manipulating the 'hash' parameter in HTTP requests.
- Example Exploit: An attacker might send a crafted HTTP request with a malicious 'hash' parameter, such as
http://example.com/?hash=1' OR '1'='1. - Detection: Security professionals can detect SQL Injection attempts by monitoring for unusual SQL queries and error messages in the application logs.
- Remediation: Ensure that all SQL queries use prepared statements and parameterized queries. Review and update the plugin code to include proper input validation and sanitization.
Conclusion
The SQL Injection vulnerability in the Email Subscribers by Icegram Express plugin for WordPress is a critical issue that requires immediate attention. Organizations should prioritize updating the plugin and implementing robust security measures to mitigate the risk. The potential impact on the European cybersecurity landscape underscores the importance of proactive security management and continuous monitoring.