CVE-2026-25993

Comprehensive Technical Analysis of CVE-2026-25993

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2026-25993 CVSS Score: 9.8

The vulnerability in EverShop, a TypeScript-first eCommerce platform, involves a second-order SQL injection during category update and deletion event handling. The application embeds path or request_path values derived from the url_key stored in the database into SQL statements via string concatenation. This method allows for the execution of malicious SQL code if a crafted string is stored in the url_key.

Severity Evaluation:

• CVSS Score: 9.8 (Critical)
• Impact: High
• Exploitability: High

The high CVSS score indicates a critical vulnerability that can be easily exploited with severe consequences, including data breaches, unauthorized access, and potential data corruption.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

1. Stored SQL Injection: An attacker can inject malicious SQL code into the url_key field, which is later used in SQL queries during category update or deletion events.
2. Second-Order SQL Injection: The malicious input is stored in the database and later executed when the application processes the stored data.

Exploitation Methods:

1. Direct Injection: An attacker could manipulate the url_key field directly if they have access to the input mechanism.
2. Indirect Injection: An attacker could exploit another vulnerability to insert malicious data into the url_key field, which is later processed by the application.

3. Affected Systems and Software Versions

Affected Software:

• EverShop eCommerce platform

Affected Versions:

• All versions prior to v2.1.1

Patched Version:

• v2.1.1 and later

4. Recommended Mitigation Strategies

1. Immediate Patching: Upgrade to EverShop version v2.1.1 or later, which includes the patch for this vulnerability.
2. Input Validation: Implement strict input validation and sanitization for all user inputs, especially for fields like url_key.
3. Parameterized Queries: Use parameterized queries or prepared statements to prevent SQL injection.
4. Regular Audits: Conduct regular security audits and code reviews to identify and mitigate similar vulnerabilities.
5. Monitoring: Implement monitoring and alerting for suspicious database activities.

5. Impact on Cybersecurity Landscape

This vulnerability highlights the ongoing risk of SQL injection attacks, particularly in eCommerce platforms where sensitive data is handled. It underscores the importance of secure coding practices, regular updates, and thorough security testing. The high CVSS score indicates the potential for significant damage if exploited, emphasizing the need for proactive security measures.

6. Technical Details for Security Professionals

Vulnerability Details:

• Root Cause: The application uses string concatenation to embed path or request_path values derived from the url_key into SQL statements.
• Exploitation: If a malicious string is stored in the url_key, subsequent event processing modifies and executes the SQL statement, leading to a second-order SQL injection.

Mitigation Steps:

1. Code Review: Ensure that all SQL queries use parameterized queries or prepared statements.
2. Database Security: Implement database security measures such as least privilege access and regular backups.
3. Security Testing: Conduct thorough penetration testing and vulnerability assessments to identify and mitigate similar issues.
4. User Education: Educate developers and users about the risks of SQL injection and best practices for secure coding.

References:

• Patch Commit
• Vendor Advisory

By addressing this vulnerability promptly and implementing robust security measures, organizations can significantly reduce the risk of SQL injection attacks and protect their eCommerce platforms from potential breaches.