CVE-2025-3796: Men Salon Management System SQLi Flaw

CVE-2025-3796 Overview

CVE-2025-3796 is a SQL injection vulnerability in PHPGurukul Men Salon Management System 1.0. The flaw resides in the /admin/contact-us.php script, where the pagetitle, pagedes, email, mobnumber, and timing parameters are passed to backend SQL queries without proper sanitization. Authenticated attackers can manipulate these parameters remotely to inject arbitrary SQL statements. Public exploit details have been disclosed, increasing the likelihood of opportunistic exploitation against exposed installations. The vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command) and CWE-74 (Improper Neutralization of Special Elements in Output).

Critical Impact
Authenticated attackers can read, modify, or delete database contents through the administrative contact page, compromising the confidentiality and integrity of salon customer and operational data.

Affected Products

PHPGurukul Men Salon Management System 1.0
The vulnerable component is the /admin/contact-us.php administrative endpoint
No vendor patch is currently listed for this release

Discovery Timeline

2025-04-18 - CVE-2025-3796 published to NVD
2025-05-28 - Last updated in NVD database

Technical Details for CVE-2025-3796

Vulnerability Analysis

The vulnerability stems from unsanitized user input being concatenated directly into SQL statements within the /admin/contact-us.php script. The admin contact configuration page accepts five user-controlled fields: pagetitle, pagedes, email, mobnumber, and timing. Each of these fields is forwarded into an UPDATE statement without parameterized queries or input filtering.

An attacker with administrative session access can submit specially crafted strings containing SQL meta-characters. These payloads alter the structure of the executed query, allowing data extraction through error-based or boolean-based injection techniques. Because the attack requires authenticated access, exploitation depends on credential compromise, default credentials, or weak access controls on the admin panel.

Root Cause

The root cause is the absence of prepared statements and input validation in the contact page handler. PHP code in contact-us.php builds SQL queries through string concatenation with raw $_POST values. This pattern is a textbook example of CWE-89, where user input crosses into a SQL interpreter without being treated as data.

Attack Vector

Exploitation occurs over the network against the administrative interface. The attacker submits a POST request to /admin/contact-us.php with malicious payloads in any of the five vulnerable parameters. The vulnerability mechanism and parameter manipulation pattern are documented in the GitHub SQL Injection Report and tracked in VulDB #305649.

// No verified exploit code is published.
// Refer to the GitHub advisory for parameter-level injection details.

Detection Methods for CVE-2025-3796

Indicators of Compromise

POST requests to /admin/contact-us.php containing SQL meta-characters such as single quotes, UNION SELECT, SLEEP(, or comment sequences (--, #) in pagetitle, pagedes, email, mobnumber, or timing parameters
Web server access logs showing abnormally long parameter values or unusual encoding in admin form submissions
Database error messages or stack traces emitted in HTTP responses from the admin contact page

Detection Strategies

Deploy web application firewall (WAF) signatures that flag SQL injection patterns targeting the contact-us.php endpoint
Enable MySQL general query logging on the application database and review queries originating from the admin contact handler for unexpected UNION, INFORMATION_SCHEMA, or sleep-based payloads
Correlate admin authentication events with subsequent anomalous POST payloads to surface compromised administrator sessions

Monitoring Recommendations

Alert on repeated 500-series HTTP responses from /admin/contact-us.php, which often indicate injection probes triggering SQL syntax errors
Monitor for outbound database connections or data export activity following admin contact page submissions
Track first-time admin logins from new IP addresses and tie them to subsequent write operations on the contact-us settings table

How to Mitigate CVE-2025-3796

Immediate Actions Required

Restrict network access to the /admin/ directory using IP allowlists or VPN-gated access until a fix is applied
Audit administrator accounts, rotate credentials, and enforce strong passwords with multi-factor authentication where supported
Place a WAF rule in blocking mode for SQL injection signatures targeting the affected parameters

Patch Information

No official vendor patch has been published for PHPGurukul Men Salon Management System 1.0 at the time of NVD disclosure. Administrators should monitor the PHP Gurukul website for updated releases. In the interim, source-level remediation requires replacing string-concatenated SQL with parameterized queries using PHP Data Objects (PDO) or mysqli prepared statements, and applying server-side validation on the email, mobnumber, and timing fields.

Workarounds

Modify /admin/contact-us.php locally to bind parameters via mysqli_stmt_bind_param or PDO prepared statements instead of concatenating $_POST values
Apply input validation: enforce numeric-only constraints on mobnumber, RFC-compliant format on email, and length limits on free-text fields
Temporarily disable the contact-us management feature if it is not in active use, by removing or renaming the script

bash

# Example: restrict admin directory access via Apache .htaccess
<Directory "/var/www/html/admin">
    Order Deny,Allow
    Deny from all
    Allow from 10.0.0.0/8
    Allow from 192.168.0.0/16
</Directory>