CVE-2025-27892: Shopware SQL Injection Vulnerability

CVE-2025-27892 Overview

CVE-2025-27892 is a SQL Injection vulnerability affecting Shopware versions prior to 6.5.8.13. The vulnerability exists in the /api/search/order endpoint and represents a regression of previously patched vulnerabilities CVE-2024-22406 and CVE-2024-42357. Authenticated attackers with network access can exploit this flaw to inject malicious SQL queries, potentially compromising the confidentiality, integrity, and availability of the underlying database.

Critical Impact

Authenticated attackers can exploit this SQL injection vulnerability to extract sensitive data, modify database contents, or disrupt service availability through the order search API endpoint.

Affected Products

• Shopware versions prior to 6.5.8.13
• Shopware versions between 6.6.0.0 and prior to 6.6.10.3
• Shopware 6.7.0.0-rc1

Discovery Timeline

• 2025-04-15 - CVE-2025-27892 published to NVD
• 2025-04-23 - Last updated in NVD database

Technical Details for CVE-2025-27892

Vulnerability Analysis

This SQL injection vulnerability (CWE-89) affects the order search functionality in Shopware's REST API. The flaw occurs because user-supplied input to the /api/search/order endpoint is not properly sanitized before being incorporated into SQL queries. This vulnerability is notable as it represents a regression—the same vulnerability class was previously addressed in CVE-2024-22406 and CVE-2024-42357, but the fix was incomplete or inadvertently reverted.

The vulnerability requires authenticated access to exploit, which limits the attack surface to users with valid credentials. However, once authenticated, an attacker can craft malicious search parameters that escape the intended query structure and execute arbitrary SQL commands against the database.

Root Cause

The root cause is improper neutralization of special elements used in SQL commands (CWE-89). The order search API endpoint fails to adequately validate and sanitize user input before constructing database queries. This regression suggests that code changes after the original patches for CVE-2024-22406 and CVE-2024-42357 reintroduced the vulnerable code path or bypassed the existing protections.

Attack Vector

The attack is network-based and requires the attacker to have authenticated access to the Shopware administration API. The attacker sends specially crafted requests to the /api/search/order endpoint containing SQL injection payloads within search parameters. Upon processing, the malicious input is incorporated into the backend SQL query without proper sanitization, allowing the attacker to:

• Extract sensitive customer and order data from the database
• Modify or delete database records
• Potentially escalate privileges within the application
• Cause denial of service through resource-intensive queries

The vulnerability requires user interaction in the sense that an authenticated session must be established, though the actual exploitation does not require additional user actions beyond the attacker's own requests.

Detection Methods for CVE-2025-27892

Indicators of Compromise

• Unusual or malformed requests to the /api/search/order endpoint containing SQL syntax characters such as single quotes, semicolons, or UNION statements
• Database error messages appearing in API responses or logs
• Unexpected database queries or query patterns in database audit logs
• Signs of data exfiltration or unauthorized data access in database transaction logs

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in API requests
• Monitor API access logs for anomalous search queries containing suspicious characters or SQL keywords
• Enable database query logging and alert on queries originating from the order search functionality that contain unexpected SQL statements
• Deploy application-level logging to track all requests to the /api/search/order endpoint with full parameter logging

Monitoring Recommendations

• Configure real-time alerting for SQL injection attack patterns in web server and API gateway logs
• Establish baseline metrics for normal order search API usage and alert on deviations
• Monitor database performance metrics for unusual query patterns or resource consumption
• Review authentication logs for accounts making excessive or suspicious API requests to the order search endpoint

How to Mitigate CVE-2025-27892

Immediate Actions Required

• Upgrade Shopware to version 6.5.8.13 or later for the 6.5.x branch
• Upgrade to version 6.6.10.3 or later for the 6.6.x branch
• Review access logs for any signs of exploitation prior to patching
• Temporarily restrict access to the /api/search/order endpoint if immediate patching is not possible

Patch Information

Shopware has released security patches addressing this vulnerability. Organizations should update to the following minimum versions:

• Shopware 6.5.x: Upgrade to version 6.5.8.13 or later
• Shopware 6.6.x: Upgrade to version 6.6.10.3 or later

For detailed patch information and upgrade instructions, refer to the Shopware GitHub Security Advisory. Additional technical analysis is available in the RedTeam Pentesting Advisory.

Workarounds

• Implement strict input validation and parameterized queries at the application layer if source code modifications are possible
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules in front of the Shopware instance
• Restrict API access to the /api/search/order endpoint to only trusted IP addresses or networks
• Apply the principle of least privilege to database accounts used by the Shopware application to limit potential damage from successful exploitation

# Example: Restrict API access via nginx configuration
location /api/search/order {
    # Allow only trusted admin IPs
    allow 10.0.0.0/8;
    allow 192.168.1.0/24;
    deny all;
    
    # Pass to upstream
    proxy_pass http://shopware_backend;
}