CVE-2026-75088 Overview
CVE-2026-75088 is a SQL injection vulnerability in itsourcecode Hospital Management System version 1.0. The flaw resides in /viewbilling.php, where the delid parameter is passed to the underlying database query without proper sanitization. Attackers can manipulate the delid argument to inject arbitrary SQL statements. The vulnerability is remotely exploitable and requires only low-level authentication. Public disclosure of the exploit technique has already occurred, increasing the likelihood of opportunistic abuse against exposed installations. The weakness is categorized under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component).
Critical Impact
Authenticated remote attackers can inject SQL statements through the delid parameter of /viewbilling.php, exposing billing data and potentially the wider database contents.
Affected Products
- itsourcecode Hospital Management System 1.0
- Component: /viewbilling.php
- Vulnerable parameter: delid
Discovery Timeline
- 2026-08-18 - CVE-2026-75088 published to NVD
- 2026-08-20 - Last updated in NVD database
Technical Details for CVE-2026-75088
Vulnerability Analysis
The vulnerability exists in the billing management functionality of itsourcecode Hospital Management System 1.0. The /viewbilling.php script accepts a delid request parameter that identifies which billing record to operate on. The application concatenates this value directly into a SQL statement without parameterized queries or input validation. An authenticated attacker with low privileges can supply crafted input to alter query logic, extract data from other tables, or enumerate the database schema. Because the attack occurs over the network and requires no user interaction, exploitation can be automated with widely available SQL injection tooling.
Root Cause
The root cause is improper neutralization of user-supplied input before it is used in a downstream SQL query [CWE-74]. The delid argument in /viewbilling.php is not bound as a prepared statement parameter and is not validated as an integer. This allows meta-characters and SQL syntax to change the intended query structure.
Attack Vector
An attacker with a valid low-privileged session sends an HTTP request to /viewbilling.php with a manipulated delid value. Payloads can include boolean-based, time-based, or UNION-based SQL injection patterns to exfiltrate data or modify billing records. Public disclosure of the technique means proof-of-concept payloads are already circulating. See the VulDB CVE Analysis CVE-2026-75088 and GitHub CVE Issue Discussion for further technical context.
No verified proof-of-concept code is reproduced here. Refer to the referenced advisories for payload details.
Detection Methods for CVE-2026-75088
Indicators of Compromise
- HTTP requests to /viewbilling.php where the delid parameter contains SQL meta-characters such as single quotes, UNION, SELECT, SLEEP(, or comment sequences (--, #).
- Anomalous response sizes or delays on /viewbilling.php responses, indicating boolean or time-based injection probing.
- Unexpected database errors surfaced in application or web server logs referencing the billing module.
Detection Strategies
- Deploy a web application firewall (WAF) signature that inspects the delid parameter for non-integer values and known SQLi patterns.
- Enable verbose query logging on the backend database and alert on syntactically unusual statements originating from the billing script.
- Correlate authenticated session activity with parameter tampering attempts to identify low-privileged account abuse.
Monitoring Recommendations
- Monitor authentication logs for brute-force or credential-stuffing activity that could produce the low-privilege access required for exploitation.
- Track outbound data volumes from the database host to detect bulk exfiltration following successful injection.
- Review web access logs for repeated requests to /viewbilling.php from a single source with varying delid values.
How to Mitigate CVE-2026-75088
Immediate Actions Required
- Restrict network exposure of the Hospital Management System to trusted networks or VPN access until a fix is applied.
- Audit user accounts and revoke unnecessary low-privilege access to the billing module.
- Deploy WAF rules that reject non-numeric input for the delid parameter.
Patch Information
As of the last NVD update on 2026-08-20, no official vendor patch has been published for itsourcecode Hospital Management System 1.0. Administrators should monitor the IT Source Code site and the VulDB Vulnerability Details #391313 entry for future remediation guidance.
Workarounds
- Modify /viewbilling.php to cast the delid argument to an integer before use, for example using intval($_GET['delid']) in PHP.
- Refactor the affected query to use prepared statements with bound parameters via PDO or MySQLi.
- Apply least-privilege database credentials so the web application account cannot read tables outside the billing scope.
# Example WAF rule (ModSecurity) blocking non-integer delid values on /viewbilling.php
SecRule REQUEST_URI "@beginsWith /viewbilling.php" \
"chain,phase:2,deny,status:403,id:1750881,msg:'CVE-2026-75088 SQLi attempt on delid'"
SecRule ARGS:delid "!@rx ^[0-9]+$" "t:none"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
