CVE-2025-3347: Patient Record Management System SQLi Flaw

CVE-2025-3347 Overview

CVE-2025-3347 is a SQL injection vulnerability in code-projects Patient Record Management System 1.0. The flaw resides in the /dental_pending.php script, where the ID parameter is concatenated into a SQL query without proper sanitization. Remote attackers can manipulate this parameter to inject arbitrary SQL statements against the backend database. The exploit details have been disclosed publicly, increasing the likelihood of opportunistic attacks. The weakness is classified under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component).

Critical Impact
Remote attackers with low privileges can extract, modify, or delete patient records by injecting SQL through the ID parameter of /dental_pending.php.

Affected Products

code-projects Patient Record Management System 1.0
Component: /dental_pending.php
CPE: cpe:2.3:a:code-projects:patient_record_management_system:1.0:*:*:*:*:*:*:*

Discovery Timeline

2025-04-07 - CVE-2025-3347 published to NVD
2025-05-28 - Last updated in NVD database

Technical Details for CVE-2025-3347

Vulnerability Analysis

The vulnerability exists in the /dental_pending.php endpoint of code-projects Patient Record Management System 1.0. The application accepts the ID parameter from user-supplied input and incorporates it directly into a SQL query. Because the input is not parameterized or escaped, attackers can append SQL operators, UNION clauses, or boolean conditions to alter query logic. The attack requires network access and low-level authenticated privileges, but no user interaction. Successful exploitation impacts the confidentiality, integrity, and availability of the underlying database, which holds sensitive patient health information.

Root Cause

The root cause is improper neutralization of special elements in a downstream SQL query [CWE-74]. The ID parameter flows into a database call without prepared statements or input validation. This allows attacker-controlled syntax to be interpreted as SQL instructions rather than as data.

Attack Vector

An attacker sends a crafted HTTP request to /dental_pending.php with a malicious payload in the ID parameter. The injected statements execute within the database context of the application. Depending on database permissions, attackers can enumerate tables, exfiltrate patient data, alter records, or escalate to authentication bypass through manipulated query results.

No verified proof-of-concept code is published in the references. Technical details are available through the GitHub CVE Project README and VulDB entry #303561.

Detection Methods for CVE-2025-3347

Indicators of Compromise

HTTP requests to /dental_pending.php containing SQL metacharacters such as ', ", --, UNION, SELECT, or OR 1=1 in the ID parameter.
Database error messages or HTTP 500 responses returned by dental_pending.php shortly after parameter manipulation.
Anomalous outbound database query volume originating from the web application service account.
Unexpected reads or modifications of patient record tables outside of normal application workflows.

Detection Strategies

Deploy web application firewall (WAF) signatures targeting SQL injection patterns on the ID query parameter.
Enable verbose web server logging for /dental_pending.php and alert on non-numeric values supplied to the ID argument.
Correlate web access logs with database audit logs to flag queries that include unexpected UNION or comment sequences.

Monitoring Recommendations

Monitor database query patterns for sudden schema enumeration against information_schema tables.
Track authentication events from low-privileged accounts followed by access to /dental_pending.php.
Forward web and database logs to a centralized SIEM for cross-source correlation and retention.

How to Mitigate CVE-2025-3347

Immediate Actions Required

Restrict network exposure of the Patient Record Management System to trusted internal networks or VPN-only access.
Disable or remove the /dental_pending.php endpoint until the input handling is remediated.
Rotate database credentials used by the application and apply least-privilege permissions to the database account.
Review database audit logs for prior queries matching SQL injection patterns against the ID parameter.

Patch Information

No official vendor patch is listed in the published references. Administrators should monitor the Code Projects Resource Hub and the VulDB advisory #303561 for vendor updates. Until a fix is released, source code modifications are required to introduce parameterized queries in dental_pending.php.

Workarounds

Implement parameterized queries or prepared statements for all database interactions in dental_pending.php.
Add server-side input validation that enforces a strict numeric type for the ID parameter before query execution.
Deploy a WAF rule blocking SQL metacharacters and common injection payloads on requests to the affected endpoint.
Apply database-level controls limiting the application account to required tables and operations only.

bash

# Example WAF rule (ModSecurity) blocking SQLi on the ID parameter of dental_pending.php
SecRule REQUEST_URI "@contains /dental_pending.php" \
    "chain,deny,status:403,id:1003347,msg:'CVE-2025-3347 SQLi attempt on ID parameter'"
    SecRule ARGS:ID "@rx (?i)(union(\s|/\*).*select|';|\"|--|\bor\b\s+1=1)" "t:none"