CVE-2025-6309: Phpgurukul Ambulance Portal SQLi Flaw

CVE-2025-6309 Overview

CVE-2025-6309 is a SQL injection vulnerability in PHPGurukul Emergency Ambulance Hiring Portal 1.0. The flaw resides in the /admin/add-ambulance.php script, where the ambregnum parameter is passed to the backend database without proper sanitization. An authenticated remote attacker can manipulate this parameter to inject arbitrary SQL statements. The exploit details have been publicly disclosed, increasing the likelihood of opportunistic attacks against exposed installations. The vulnerability is tracked under [CWE-74] (Improper Neutralization of Special Elements in Output).

Critical Impact
Remote attackers with low privileges can manipulate the ambregnum parameter to execute arbitrary SQL queries against the application database, potentially exposing or modifying records.

Affected Products

PHPGurukul Emergency Ambulance Hiring Portal 1.0
Component: /admin/add-ambulance.php
Parameter: ambregnum

Discovery Timeline

2025-06-20 - CVE-2025-6309 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-6309

Vulnerability Analysis

The vulnerability exists in the administrative ambulance registration workflow of the Emergency Ambulance Hiring Portal. The /admin/add-ambulance.php script accepts the ambregnum argument from an HTTP request and concatenates it directly into a SQL query string. Because the input is not validated, escaped, or bound through parameterized queries, an attacker can inject SQL syntax that alters the query logic.

Successful exploitation can disclose database contents, modify records, or bypass administrative checks depending on the underlying query structure. The attack is remotely exploitable over the network and requires only low-privileged access to the admin interface. The Exploit Prediction Scoring System (EPSS) lists this issue at 0.318%, placing it in the 23rd percentile for predicted exploitation likelihood.

Root Cause

The root cause is improper neutralization of special elements ([CWE-74]) in the ambregnum request parameter. The application constructs SQL queries by concatenating untrusted user input rather than using prepared statements with bound parameters. PHP's mysqli and PDO extensions both support parameterized queries, but the affected code path does not employ them.

Attack Vector

An attacker authenticated to the admin panel submits a crafted value for the ambregnum field on the add-ambulance form. The malicious payload includes SQL metacharacters such as single quotes, UNION SELECT clauses, or boolean-based blind injection patterns. The backend interprets the injected fragments as part of the original query and returns query results, error messages, or executes data modification statements. Public disclosure of the exploit increases the operational risk for any internet-exposed installation.

No verified proof-of-concept code is available from the NVD record. See the GitHub Issue Discussion and VulDB #313309 for additional technical context.

Detection Methods for CVE-2025-6309

Indicators of Compromise

HTTP POST requests to /admin/add-ambulance.php containing SQL metacharacters such as ', --, UNION, or SLEEP( in the ambregnum parameter.
Unexpected database errors, slow query logs, or anomalous SELECT/UPDATE statements originating from the PHP application user.
Successful admin authentication followed by abnormal volumes of requests to the add-ambulance endpoint from a single source IP.

Detection Strategies

Inspect web server access logs for non-standard characters in the ambregnum query parameter or POST body.
Deploy a web application firewall (WAF) rule set that flags SQL injection signatures targeting PHPGurukul admin endpoints.
Enable MySQL general query logging temporarily to identify queries originating from /admin/add-ambulance.php that contain injected tautologies or stacked statements.

Monitoring Recommendations

Forward web server, PHP error, and database logs to a centralized log analytics platform for correlation.
Alert on repeated 500-series HTTP responses from /admin/add-ambulance.php, which often indicate injection probing.
Track admin account session activity to identify credential reuse or brute-force attempts that precede exploitation.

How to Mitigate CVE-2025-6309

Immediate Actions Required

Restrict access to the /admin/ directory using IP allow-listing or VPN-only access until a fix is applied.
Rotate administrative credentials and enforce strong password policies on the application.
Review database audit logs for unauthorized SELECT, INSERT, UPDATE, or DROP statements issued through the application user.

Patch Information

No vendor patch is referenced in the NVD entry for CVE-2025-6309. Organizations running PHPGurukul Emergency Ambulance Hiring Portal 1.0 should monitor the PHP Gurukul website for updates and consult the VulDB #313309 CTI record for any future remediation guidance.

Workarounds

Modify the add-ambulance.php source to use parameterized queries via mysqli_prepare() or PDO prepared statements with bound parameters.
Apply server-side input validation on ambregnum to allow only expected characters such as alphanumerics and limited punctuation.
Deploy a WAF rule blocking common SQL injection patterns on the /admin/add-ambulance.php endpoint as a compensating control.
Run the database account used by the application with the least privileges required, removing FILE, DROP, and administrative grants.

bash

# Example ModSecurity rule to block SQLi attempts on the vulnerable parameter
SecRule ARGS:ambregnum "@detectSQLi" \
    "id:1006309,\
    phase:2,\
    deny,\
    status:403,\
    msg:'CVE-2025-6309 SQLi attempt in ambregnum parameter',\
    tag:'application-multi',\
    tag:'attack-sqli'"