CVE-2025-10662: SeaCMS SQL Injection Vulnerability

CVE-2025-10662 Overview

A SQL injection vulnerability has been identified in SeaCMS versions up to 13.3. The vulnerability exists in the /admin_members.php?ac=editsave endpoint, where improper handling of the ID parameter allows attackers to inject malicious SQL statements. This vulnerability can be exploited remotely by authenticated attackers with administrative privileges, potentially leading to unauthorized data access, modification, or deletion within the database.

Critical Impact

Authenticated attackers with admin privileges can exploit this SQL injection flaw to extract sensitive data, modify database records, or potentially escalate their attack to compromise the underlying system.

Affected Products

• SeaCMS versions up to and including 13.3
• SeaCMS installations with exposed admin panel (/admin_members.php)
• Systems running vulnerable SeaCMS configurations with the editsave action

Discovery Timeline

• 2025-09-18 - CVE-2025-10662 published to NVD
• 2025-09-19 - Last updated in NVD database

Technical Details for CVE-2025-10662

Vulnerability Analysis

This SQL injection vulnerability affects the member management functionality within the SeaCMS administrative interface. The vulnerable endpoint /admin_members.php?ac=editsave fails to properly sanitize the ID parameter before incorporating it into SQL queries. When processing member edit operations, user-supplied input is concatenated directly into database queries without adequate parameterization or escaping, creating an injection point that attackers can leverage.

It is important to note that this vulnerability represents a distinct injection point from CVE-2025-25513, indicating that multiple areas of the SeaCMS codebase may suffer from similar input validation deficiencies.

Root Cause

The root cause of this vulnerability is improper input validation and inadequate sanitization of user-controlled data. The ID parameter passed to the editsave action is not properly validated or parameterized before being used in SQL queries. This allows malicious SQL fragments to be injected and executed against the database, bypassing intended query logic.

The vulnerability is classified under CWE-89 (SQL Injection) and CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), highlighting the failure to neutralize special SQL characters in user input.

Attack Vector

The attack can be executed remotely over the network. An attacker with administrative credentials can manipulate the ID parameter in HTTP requests to the /admin_members.php?ac=editsave endpoint. By crafting malicious input containing SQL syntax, the attacker can alter query behavior to extract data, bypass authentication checks, or modify database contents.

The vulnerability requires high privileges (administrator access) to exploit, which somewhat limits the attack surface. However, in scenarios where admin credentials are compromised or weak, this vulnerability poses a significant risk. A proof-of-concept exploit has been publicly disclosed, increasing the likelihood of exploitation in the wild.

Technical details and proof-of-concept information can be found in the GitHub PoC Repository.

Detection Methods for CVE-2025-10662

Indicators of Compromise

• Unusual SQL error messages in application logs originating from /admin_members.php
• Anomalous HTTP requests to /admin_members.php?ac=editsave containing SQL syntax characters such as single quotes, UNION, SELECT, or comment sequences (--)
• Database query logs showing unexpected or malformed queries against member tables
• Multiple failed or suspicious authentication attempts followed by access to the admin members endpoint

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in requests to /admin_members.php
• Enable detailed logging for all administrative endpoints and monitor for injection attempt signatures
• Implement intrusion detection system (IDS) rules to flag requests containing common SQL injection payloads

Monitoring Recommendations

• Monitor access logs for unusual activity on the /admin_members.php endpoint, particularly with the ac=editsave action
• Set up alerts for database errors or exceptions that may indicate injection attempts
• Review admin user activity logs regularly to identify unauthorized or suspicious access patterns
• Track the ID parameter values in requests for abnormal lengths or special characters

How to Mitigate CVE-2025-10662

Immediate Actions Required

• Restrict access to the SeaCMS administrative panel to trusted IP addresses only
• Audit admin user accounts and ensure strong, unique passwords are in use
• Implement Web Application Firewall rules to filter malicious SQL injection patterns
• Review application and database logs for signs of exploitation attempts
• Consider temporarily disabling the member edit functionality if not critical to operations

Patch Information

As of the last update on 2025-09-19, no official patch information has been provided by the vendor. Organizations using SeaCMS should monitor the official SeaCMS channels and VulDB entry #324783 for updates regarding security patches. Users are advised to upgrade to a patched version as soon as one becomes available.

Workarounds

• Implement input validation at the application layer to reject ID parameter values containing non-numeric characters
• Deploy a reverse proxy or WAF with SQL injection protection enabled in front of the SeaCMS installation
• Limit database user privileges for the SeaCMS application to only necessary operations (principle of least privilege)
• Consider using prepared statements or parameterized queries if modifying the source code is feasible

# Example: Restrict access to admin panel via .htaccess (Apache)
<Files "admin_members.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Files>