CVE-2025-40657: DM Corporative CMS SQL Injection Flaw

CVE-2025-40657 Overview

A critical SQL injection vulnerability has been discovered in DM Corporative CMS. This vulnerability allows an attacker to retrieve, create, update and delete databases through the codform parameter in /modules/forms/collectform.asp. The flaw enables unauthenticated remote attackers to manipulate backend database operations, potentially leading to complete database compromise, data exfiltration, and unauthorized modifications to application data.

Critical Impact

Unauthenticated attackers can exploit this SQL injection vulnerability to gain full control over the database, enabling data theft, modification, and deletion without any prior authentication.

Affected Products

• DM Corporative CMS (all versions)
• Acc DM Corporative CMS
• DMacroweb CMS implementations

Discovery Timeline

• 2025-06-10 - CVE-2025-40657 published to NVD
• 2025-10-22 - Last updated in NVD database

Technical Details for CVE-2025-40657

Vulnerability Analysis

This SQL injection vulnerability (CWE-89) exists in the form collection module of DM Corporative CMS. The vulnerable endpoint /modules/forms/collectform.asp fails to properly sanitize or parameterize user-supplied input through the codform parameter before incorporating it into SQL queries. This allows attackers to inject arbitrary SQL commands that are executed by the database server with the application's privileges.

The vulnerability is particularly severe because it requires no authentication and can be exploited remotely over the network. Successful exploitation grants attackers the ability to perform unauthorized database operations including reading sensitive data, modifying records, and potentially deleting entire databases.

Root Cause

The root cause of this vulnerability is improper input validation and the use of dynamic SQL query construction without proper parameterization or prepared statements. The codform parameter value is directly concatenated into SQL queries executed by the ASP application, allowing malicious SQL syntax to be interpreted as part of the query structure rather than as data.

Attack Vector

The attack is network-based and requires no user interaction or prior authentication. An attacker can craft malicious HTTP requests targeting the vulnerable endpoint with specially crafted SQL payloads in the codform parameter. The attack complexity is low, making this vulnerability accessible to attackers with basic SQL injection knowledge.

The exploitation path involves sending crafted requests to the /modules/forms/collectform.asp endpoint with SQL injection payloads in the codform parameter. Depending on the database backend and application configuration, attackers may leverage techniques such as UNION-based injection, error-based injection, or blind SQL injection to extract data or execute commands.

For detailed technical information about this vulnerability, refer to the INCIBE Security Notice.

Detection Methods for CVE-2025-40657

Indicators of Compromise

• Unusual HTTP requests to /modules/forms/collectform.asp containing SQL syntax in the codform parameter
• Database error messages in application logs indicating malformed SQL queries
• Unexpected database queries or operations logged by database auditing systems
• Signs of data exfiltration or unauthorized database modifications

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in requests to the vulnerable endpoint
• Implement database activity monitoring to identify anomalous query patterns or unauthorized data access
• Configure intrusion detection systems (IDS) to alert on HTTP requests containing common SQL injection payloads targeting ASP applications
• Review web server access logs for requests to /modules/forms/collectform.asp with suspicious parameter values

Monitoring Recommendations

• Enable verbose logging for the DM Corporative CMS application and database server
• Monitor for failed authentication attempts and unusual data access patterns in database audit logs
• Set up alerts for requests containing SQL keywords (UNION, SELECT, DROP, INSERT) in the codform parameter
• Implement real-time monitoring of database query execution for unexpected or malicious operations

How to Mitigate CVE-2025-40657

Immediate Actions Required

• Restrict network access to the vulnerable endpoint /modules/forms/collectform.asp until a patch is available
• Deploy WAF rules to block SQL injection attempts targeting the codform parameter
• Review and audit database access logs for signs of prior exploitation
• Consider temporarily disabling the forms module if not critical to operations

Patch Information

As of the last update, no official vendor patch has been publicly referenced for this vulnerability. Organizations should monitor the INCIBE Security Notice for updates and contact the vendor directly for remediation guidance. In the absence of a patch, implementing the workarounds below is strongly recommended.

Workarounds

• Implement input validation to sanitize the codform parameter, rejecting requests containing SQL metacharacters
• Deploy a Web Application Firewall with SQL injection detection rules in blocking mode
• Restrict database user privileges for the CMS application to minimum required permissions
• Consider placing the application behind additional network segmentation to limit exposure
• Implement database query parameterization at the application level if source code access is available

# Example WAF rule for ModSecurity to block SQL injection on the vulnerable parameter
SecRule ARGS:codform "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection attempt blocked on codform parameter',\
    tag:'attack-sqli',\
    tag:'CVE-2025-40657'"