CVE-2025-69949: Hospital Management System SQLi Flaw

CVE-2025-69949 Overview

CVE-2025-69949 is a SQL injection vulnerability [CWE-89] affecting kishan0725 Hospital Management System version 4.0. The flaw resides in the check_availability.php endpoint, where the emailid and email request parameters flow into SQL statements without proper sanitization. Unauthenticated remote attackers can inject arbitrary SQL syntax through these parameters to manipulate backend database queries. Successful exploitation can lead to unauthorized data disclosure, tampering of stored records, and disruption of database availability. The vulnerability is reachable over the network without user interaction, making internet-facing deployments particularly exposed.

Critical Impact
Remote, unauthenticated SQL injection in check_availability.php enables attackers to read, modify, or delete data in the Hospital Management System database.

Affected Products

kishan0725 Hospital Management System 4.0
check_availability.php component (parameter emailid)
check_availability.php component (parameter email)

Discovery Timeline

2026-07-29 - CVE-2025-69949 published to NVD
2026-07-30 - Last updated in NVD database

Technical Details for CVE-2025-69949

Vulnerability Analysis

The vulnerability is a classic SQL injection [CWE-89] in the Hospital Management System's availability check workflow. The check_availability.php script accepts user-controlled input through the emailid and email HTTP parameters and concatenates those values directly into a SQL statement executed against the backend database. Because the application does not use parameterized queries or apply input validation, an attacker can break out of the intended string context and append arbitrary SQL clauses.

An attacker exploiting this flaw can enumerate database schemas, extract patient and administrative records, alter stored data, or execute time-based blind injection techniques to exfiltrate content. Given the healthcare context of the application, exposed records may include personally identifiable information and clinical data.

Root Cause

The root cause is improper neutralization of special elements used in a SQL command. The emailid and email parameters are interpolated into a query string rather than bound as prepared statement parameters. No allow-list, type check, or escaping routine is applied prior to query execution, allowing SQL metacharacters such as single quotes, comments, and UNION clauses to alter query semantics.

Attack Vector

Exploitation requires only network access to the vulnerable web application. An attacker submits an HTTP request to check_availability.php supplying a crafted value in the emailid or email parameter. The malicious payload is embedded in the SQL query executed by the server, and the resulting response, error message, or timing behavior discloses query outcomes to the attacker. No authentication or user interaction is needed.

Detailed reproduction notes are available in the TaintRadar SQLi Analysis for the email parameter and the TaintRadar SQLi Analysis for the emailid parameter.

Detection Methods for CVE-2025-69949

Indicators of Compromise

Web server access logs containing SQL metacharacters such as ', --, UNION SELECT, or SLEEP( in requests to check_availability.php.
Repeated requests to check_availability.php with varying emailid or email values, indicating parameter fuzzing.
Database error strings returned in HTTP responses referencing MySQL, MariaDB, or PDO exceptions.
Unusual outbound data volumes from the web server following requests to the affected endpoint.

Detection Strategies

Deploy web application firewall (WAF) signatures that flag SQL injection patterns targeting the emailid and email parameters.
Enable database query logging and alert on anomalous statements originating from the Hospital Management System user account.
Correlate web access logs with database audit logs to identify malicious query construction.

Monitoring Recommendations

Monitor for HTTP requests to /check_availability.php containing SQL keywords or encoded payloads such as %27 or %20UNION%20.
Track response time anomalies that may indicate time-based blind SQL injection attempts.
Alert on repeated 500-series HTTP responses from the affected script, which often accompany injection probing.

How to Mitigate CVE-2025-69949

Immediate Actions Required

Restrict network exposure of the Hospital Management System web application until a patched version is deployed.
Deploy WAF rules that block SQL injection payloads in the emailid and email parameters of check_availability.php.
Rotate database credentials used by the application if injection activity is suspected.
Review database and web server logs for signs of prior exploitation, focusing on the timeframe surrounding public disclosure.

Patch Information

No official vendor patch is referenced in the CVE record. Administrators should monitor the kishan0725 Hospital Management System project for security updates and apply code fixes that replace string-concatenated queries with parameterized statements. Until an upstream fix is available, apply local code changes to use prepared statements with bound parameters and add server-side input validation for email fields.

Workarounds

Modify check_availability.php to use PDO or MySQLi prepared statements with bound parameters for emailid and email.
Implement strict server-side validation that rejects any value not matching a canonical email address format.
Enforce least-privilege database accounts so the application user cannot execute schema changes or read sensitive tables.
Place the application behind a reverse proxy with WAF capabilities and enable SQL injection rulesets.

bash

# Example WAF-style deny pattern for detecting SQLi on the vulnerable endpoint
# (adapt to your WAF's rule syntax)
Location: /check_availability.php
Deny if parameter emailid matches regex: (?i)(union(\s|\+)+select|sleep\s*\(|--|;|\bor\b\s+\d+=\d+)
Deny if parameter email   matches regex: (?i)(union(\s|\+)+select|sleep\s*\(|--|;|\bor\b\s+\d+=\d+)