CVE-2025-10841: Online Bidding System SQLi Vulnerability

CVE-2025-10841 Overview

A SQL Injection vulnerability has been identified in Fabian Online Bidding System version 1.0. The vulnerability exists in the /administrator/weweee.php file, where improper handling of the ID argument allows attackers to inject malicious SQL commands. This vulnerability can be exploited remotely without authentication, potentially allowing unauthorized access to sensitive database information, data manipulation, and system compromise.

Critical Impact

Remote attackers can exploit this SQL Injection vulnerability to extract sensitive data, modify database contents, or potentially gain unauthorized access to the underlying system through the publicly accessible administrative interface.

Affected Products

• Fabian Online Bidding System 1.0
• Code-projects Online Bidding System 1.0

Discovery Timeline

• 2025-09-23 - CVE-2025-10841 published to NVD
• 2025-09-25 - Last updated in NVD database

Technical Details for CVE-2025-10841

Vulnerability Analysis

This SQL Injection vulnerability stems from improper input validation in the administrative component of the Online Bidding System. The affected endpoint /administrator/weweee.php accepts an ID parameter that is directly incorporated into SQL queries without adequate sanitization or parameterization. This allows attackers to craft malicious input that alters the intended SQL logic, enabling unauthorized database operations.

The vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), which encompasses injection flaws where user-controlled input is not properly neutralized before being used in queries. The exploit has been publicly disclosed, increasing the risk of active exploitation in the wild.

Root Cause

The root cause of this vulnerability is insufficient input validation and the lack of parameterized queries in the PHP code handling the ID argument. When user-supplied data is concatenated directly into SQL statements without proper escaping or the use of prepared statements, attackers can manipulate the query structure by injecting SQL syntax through the input field.

Attack Vector

The attack vector is network-based, requiring no authentication or user interaction. An attacker can send specially crafted HTTP requests to the /administrator/weweee.php endpoint with a malicious ID parameter value. The injected SQL commands are then executed against the backend database with the privileges of the application's database user.

Typical exploitation techniques include:

• Union-based SQL injection to extract data from other tables
• Boolean-based blind SQL injection to infer database contents
• Time-based blind SQL injection when direct output is not available
• Stacked queries to execute multiple SQL statements (if supported by the database driver)

The vulnerability can be exploited through standard web browsers or automated tools by manipulating the ID parameter in GET or POST requests to the vulnerable endpoint. For detailed technical information, refer to the GitHub CVE Report.

Detection Methods for CVE-2025-10841

Indicators of Compromise

• Unusual SQL error messages in application logs originating from /administrator/weweee.php
• Web server access logs showing requests to weweee.php with suspicious ID parameter values containing SQL syntax (quotes, UNION, SELECT, etc.)
• Database query logs showing malformed or unexpected queries from the application
• Unexpected database read/write operations or data exfiltration patterns

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in the ID parameter
• Implement application-level logging to capture and alert on suspicious input patterns targeting the administrative interface
• Configure database activity monitoring to flag unusual query structures or access patterns
• Use intrusion detection systems (IDS) with signatures for SQL injection attack patterns

Monitoring Recommendations

• Enable verbose logging on web servers for requests to administrative endpoints
• Monitor database connection logs for unusual query execution times indicative of time-based blind SQL injection
• Set up alerts for repeated failed login attempts or database errors that may indicate active exploitation
• Review access logs periodically for patterns consistent with automated SQL injection scanning tools

How to Mitigate CVE-2025-10841

Immediate Actions Required

• Restrict access to the /administrator/ directory by implementing IP-based access controls or authentication requirements
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules
• If possible, take the Online Bidding System offline until a patch is available or manual remediation is complete
• Review database permissions and ensure the application uses a least-privilege database account

Patch Information

As of the last NVD update on 2025-09-25, no official vendor patch has been released for this vulnerability. Users should monitor the Code Projects website and VulDB entry #325203 for updates regarding security fixes. Given that the exploit has been publicly disclosed, immediate implementation of workarounds is strongly recommended.

Workarounds

• Implement input validation to whitelist only numeric values for the ID parameter
• Modify the application code in weweee.php to use prepared statements with parameterized queries instead of string concatenation
• Deploy network-level access controls to limit who can reach the administrative interface
• Consider using a reverse proxy with SQL injection filtering capabilities as an additional layer of defense

# Example: Restrict access to admin directory via .htaccess
# Add to /administrator/.htaccess

# Block requests with suspicious SQL characters in query string
RewriteEngine On
RewriteCond %{QUERY_STRING} (union|select|insert|drop|update|delete|concat|char|script) [NC]
RewriteRule .* - [F,L]

# Restrict access by IP (replace with your admin IP)
Order Deny,Allow
Deny from all
Allow from 192.168.1.100