CVE-2025-8441: Online Medicine Guide SQL Injection Flaw

CVE-2025-8441 Overview

A SQL injection vulnerability has been identified in code-projects Online Medicine Guide version 1.0. The vulnerability exists in the /pharsignup.php file, where improper handling of the phuname parameter allows attackers to inject malicious SQL statements. This flaw enables remote attackers to manipulate database queries without authentication, potentially leading to unauthorized data access, modification, or deletion.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to bypass authentication mechanisms, extract sensitive medical information, and potentially compromise the entire database backend of the Online Medicine Guide application.

Affected Products

• Anisha Online Medicine Guide 1.0
• code-projects Online Medicine Guide 1.0

Discovery Timeline

• August 1, 2025 - CVE-2025-8441 published to NVD
• August 5, 2025 - Last updated in NVD database

Technical Details for CVE-2025-8441

Vulnerability Analysis

This SQL injection vulnerability resides in the pharmacy signup functionality of the Online Medicine Guide application. The phuname parameter in /pharsignup.php fails to properly sanitize user-supplied input before incorporating it into SQL queries. When an attacker submits a specially crafted username value containing SQL metacharacters, the backend database interprets the malicious payload as part of the SQL command structure rather than as literal data.

The vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), which encompasses injection flaws where untrusted data is incorporated into commands or queries. The exploit has been publicly disclosed, increasing the risk of exploitation in the wild.

Root Cause

The root cause of this vulnerability is the lack of input validation and parameterized query implementation in the /pharsignup.php script. The application directly concatenates user-supplied input from the phuname parameter into SQL statements without proper escaping or the use of prepared statements. This architectural weakness allows attackers to break out of the intended data context and inject arbitrary SQL commands.

Attack Vector

The attack can be launched remotely over the network without requiring any authentication or user interaction. An attacker simply needs to access the /pharsignup.php endpoint and submit a malicious payload through the phuname parameter.

The exploitation process involves:

1. Identifying the vulnerable endpoint at /pharsignup.php
2. Crafting a SQL injection payload that escapes the intended query context
3. Submitting the payload via the phuname form field or HTTP parameter
4. The malicious SQL executes on the backend database server

Due to the public disclosure of this vulnerability, attackers can easily locate and exploit vulnerable instances. The attack requires no prior privileges and can be automated for mass exploitation campaigns targeting exposed Online Medicine Guide installations.

Detection Methods for CVE-2025-8441

Indicators of Compromise

• Unusual SQL error messages in application logs originating from /pharsignup.php
• Anomalous database queries containing SQL metacharacters such as single quotes, UNION statements, or comment sequences
• Unexpected database access patterns or bulk data extraction from user-related tables
• Web access logs showing repeated requests to /pharsignup.php with encoded or suspicious parameter values

Detection Strategies

• Implement web application firewall (WAF) rules to detect SQL injection patterns in POST/GET requests to /pharsignup.php
• Deploy database activity monitoring to identify anomalous query patterns including UNION-based injections, time-based blind SQL injection attempts, and error-based injection probes
• Configure intrusion detection systems (IDS) with signatures for common SQL injection attack patterns
• Enable detailed logging on the web server and database to capture request parameters and query execution

Monitoring Recommendations

• Monitor network traffic for requests to /pharsignup.php containing SQL injection payloads
• Set up alerts for database errors or exceptions occurring during user registration processes
• Review authentication logs for unusual patterns that may indicate successful SQL injection exploitation
• Implement application performance monitoring to detect anomalous response times that may indicate time-based SQL injection attacks

How to Mitigate CVE-2025-8441

Immediate Actions Required

• Remove or disable the /pharsignup.php endpoint if pharmacy signup functionality is not critical to operations
• Implement a web application firewall (WAF) with SQL injection protection rules
• Restrict network access to the vulnerable application to trusted IP ranges only
• Review database permissions and apply the principle of least privilege to the application's database account

Patch Information

No official vendor patch has been announced for this vulnerability. Organizations using Online Medicine Guide 1.0 should contact the vendor directly for remediation guidance or consider migrating to an alternative solution. Additional technical details are available through the GitHub CVE Issue Tracker and VulDB #318468.

Workarounds

• Implement server-side input validation to reject SQL metacharacters in the phuname parameter
• Modify the application code to use parameterized queries or prepared statements for all database interactions
• Deploy a reverse proxy or WAF configured to filter malicious input before it reaches the application
• Consider disabling the vulnerable functionality entirely until a proper fix can be implemented

# Example WAF rule for ModSecurity to block SQL injection attempts
SecRule ARGS:phuname "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection attempt detected in phuname parameter',\
    tag:'attack-sqli'"