CVE-2024-7306: Establishment Billing Management SQLi Flaw

CVE-2024-7306 Overview

CVE-2024-7306 is a SQL injection vulnerability in SourceCodester Establishment Billing Management System 1.0, developed by oretnom23. The flaw exists in the /manage_block.php script, where the id parameter is passed to a database query without proper sanitization. Attackers can manipulate the parameter to inject arbitrary SQL statements. The vulnerability is exploitable remotely over the network and requires low-privileged authentication. Public exploit details have been disclosed, increasing the likelihood of opportunistic exploitation. The issue is tracked under CWE-89: Improper Neutralization of Special Elements used in an SQL Command and identified in VulDB as entry #273198.

Critical Impact
Authenticated remote attackers can inject SQL statements through the id parameter of /manage_block.php, potentially exposing or modifying billing data stored in the backend database.

Affected Products

Vendor: oretnom23
Product: Establishment Billing Management System
Version: 1.0

Discovery Timeline

2024-07-31 - CVE-2024-7306 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-7306

Vulnerability Analysis

The vulnerability affects the manage_block.php endpoint in the Establishment Billing Management System web application. The script accepts an id HTTP parameter and concatenates the value directly into a SQL query executed against the backend database. Because the input is not sanitized, parameterized, or type-validated, an attacker can supply crafted values that alter the query's structure and logic.

Exploitation requires network access to the application and a low-privileged authenticated session. The impact spans confidentiality, integrity, and availability of the affected database, though scope is limited to the application's data store based on the assessed CVSS 4.0 vector.

Root Cause

The root cause is improper neutralization of user-supplied input in a SQL statement [CWE-89]. The application passes the id request parameter into a query without prepared statements or input validation, allowing SQL syntax injected by the attacker to be interpreted by the database engine.

Attack Vector

An authenticated attacker sends a crafted HTTP request to /manage_block.php with a malicious id parameter. Typical payloads use UNION-based, error-based, or boolean-based injection techniques to enumerate database schemas, exfiltrate rows, or modify records. Public proof-of-concept details are available in the GitHub Gist Code Sample and VulDB #273198 Details.

Detection Methods for CVE-2024-7306

Indicators of Compromise

HTTP requests to /manage_block.php containing SQL metacharacters such as single quotes, UNION SELECT, OR 1=1, --, or information_schema references in the id parameter.
Database error messages or unusually large response payloads returned from requests to manage_block.php.
Web server access logs showing repeated parameter tampering against the id field from a single source address.

Detection Strategies

Deploy web application firewall (WAF) signatures that inspect the id parameter of /manage_block.php for SQL injection patterns.
Enable database query logging and alert on queries against the manage_block table containing UNION or comment sequences originating from the web application user.
Correlate authentication logs with anomalous request patterns to identify low-privileged accounts issuing SQL payloads.

Monitoring Recommendations

Ingest web server, WAF, and database logs into a centralized analytics platform for cross-source correlation.
Baseline normal request volumes and parameter values for /manage_block.php and alert on statistical deviations.
Monitor outbound traffic from the database host for signs of data staging or exfiltration following suspicious query activity.

How to Mitigate CVE-2024-7306

Immediate Actions Required

Restrict network access to the Establishment Billing Management System to trusted users and IP ranges until a fix is applied.
Audit accounts with access to the application and disable or rotate credentials for any that are unnecessary or shared.
Review database logs for evidence of prior exploitation targeting the manage_block endpoint.

Patch Information

No vendor patch or security advisory has been published for this vulnerability at the time of writing. SourceCodester Establishment Billing Management System 1.0 is the only version listed as affected. Organizations running this application should consider replacing it or applying custom code fixes that parameterize the query in manage_block.php.

Workarounds

Modify manage_block.php to use prepared statements or parameterized queries when handling the id parameter.
Add server-side input validation to enforce that id is a numeric value before use in any SQL query.
Place the application behind a WAF configured with SQL injection rulesets and block requests containing SQL metacharacters in the id parameter.
Apply least-privilege permissions to the database account used by the application to limit the blast radius of a successful injection.

bash

# Example WAF rule concept (ModSecurity syntax)
SecRule ARGS:id "@rx [\'\"();]|(?i:union|select|insert|update|delete|drop|--)" \
    "id:1007306,phase:2,deny,status:403,log,msg:'CVE-2024-7306 SQLi attempt on manage_block.php'"