CVE-2025-40691: PHPGurukul Fire Reporting SQLi Flaw

CVE-2025-40691 Overview

CVE-2025-40691 is a critical SQL Injection vulnerability affecting PHPGurukul's Online Fire Reporting System version 1.2. This vulnerability exists in the todate parameter within the /ofrs/admin/bwdates-report-result.php endpoint, allowing unauthenticated attackers to execute arbitrary SQL queries against the backend database.

An attacker exploiting this vulnerability can retrieve, create, update, and delete database records, potentially compromising the entire application's data integrity and confidentiality. Given the nature of a fire reporting system, this could impact emergency response coordination and sensitive incident data.

Critical Impact

Unauthenticated attackers can fully compromise the database through SQL injection, enabling data theft, modification, and deletion of fire reporting records.

Affected Products

• PHPGurukul Online Fire Reporting System version 1.2

Discovery Timeline

• September 11, 2025 - CVE-2025-40691 published to NVD
• September 12, 2025 - Last updated in NVD database

Technical Details for CVE-2025-40691

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) occurs due to improper neutralization of special elements used in SQL commands within the bwdates-report-result.php script. The application fails to properly sanitize or parameterize the todate input parameter before incorporating it into SQL queries.

The vulnerable endpoint is part of the administrative reporting functionality, designed to generate date-based reports of fire incidents. When processing date range queries, the application directly concatenates user-supplied input into SQL statements without adequate validation or prepared statement usage.

This network-accessible vulnerability requires no authentication or user interaction to exploit. An attacker can craft malicious HTTP requests containing SQL injection payloads in the todate parameter to manipulate database queries directly.

Root Cause

The root cause is insufficient input validation and the use of dynamic SQL query construction instead of parameterized queries or prepared statements. The todate parameter value is directly concatenated into SQL queries executed against the database, allowing attackers to break out of the intended query context and inject arbitrary SQL commands.

Attack Vector

The attack is performed over the network by sending crafted HTTP requests to the vulnerable endpoint. An attacker targets the /ofrs/admin/bwdates-report-result.php endpoint and manipulates the todate parameter with SQL injection payloads.

Typical exploitation involves injecting SQL syntax such as single quotes, UNION SELECT statements, or boolean-based blind injection techniques to extract database contents, enumerate table structures, or modify/delete records. Since no authentication is required, this attack can be launched by any remote attacker with network access to the application.

The vulnerability enables full database compromise including extraction of sensitive fire report data, user credentials stored in the database, and potential administrative access to the system. For additional technical details, refer to the INCIBE Security Notice on Vulnerabilities.

Detection Methods for CVE-2025-40691

Indicators of Compromise

• Unusual or malformed requests to /ofrs/admin/bwdates-report-result.php containing SQL syntax characters such as single quotes, double dashes, or UNION keywords
• Database error messages appearing in application logs or HTTP responses indicating SQL syntax errors
• Unexpected database queries accessing multiple tables or performing enumeration operations
• Evidence of data exfiltration or unauthorized modifications to fire reporting records

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the todate parameter
• Monitor HTTP access logs for requests to bwdates-report-result.php containing suspicious characters like ', --, UNION, SELECT, or OR 1=1
• Implement database activity monitoring to detect anomalous query patterns or unauthorized data access
• Configure intrusion detection systems (IDS) with SQL injection signature rules

Monitoring Recommendations

• Enable detailed logging for all requests to the /ofrs/admin/ directory
• Set up alerts for database errors related to malformed SQL queries
• Monitor for bulk data extraction patterns or unusual query execution times
• Review database audit logs for unexpected DDL or DML operations outside normal application behavior

How to Mitigate CVE-2025-40691

Immediate Actions Required

• Restrict network access to the Online Fire Reporting System to trusted IP addresses only
• Deploy a Web Application Firewall with SQL injection protection rules in front of the application
• Consider taking the application offline until a patch is available if it processes sensitive data
• Implement network segmentation to isolate the database server from direct external access

Patch Information

At the time of publication, no official patch has been released by PHPGurukul for this vulnerability. System administrators should monitor the vendor's website and the INCIBE security advisory for updates on available patches.

Workarounds

• Implement input validation on the todate parameter to accept only properly formatted date values
• Modify the vulnerable PHP code to use prepared statements with parameterized queries instead of string concatenation
• Deploy a reverse proxy or WAF rule to filter requests containing SQL injection patterns in the todate parameter
• Restrict access to the administrative reporting functionality through additional authentication layers or IP whitelisting

# Example: Apache mod_security rule to block SQL injection in todate parameter
SecRule ARGS:todate "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection detected in todate parameter',\
    log,\
    auditlog"