CVE-2026-15536 Overview
CVE-2026-15536 is a SQL injection vulnerability in itsourcecode Hospital Management System 1.0. The flaw resides in the /patviewprescription.php script, where the delid parameter is passed directly into a SQL query without sanitization. Remote attackers with low-level authenticated access can manipulate the parameter to alter database queries. The exploit is publicly disclosed, increasing the risk of opportunistic abuse against exposed installations.
The weakness is tracked under [CWE-74] (Improper Neutralization of Special Elements in Output) and affects confidentiality, integrity, and availability of the underlying database.
Critical Impact
Authenticated remote attackers can inject arbitrary SQL through the delid parameter in /patviewprescription.php, potentially exposing or modifying patient records stored by the Hospital Management System.
Affected Products
- itsourcecode Hospital Management System 1.0
- Component: /patviewprescription.php
- Vulnerable parameter: delid
Discovery Timeline
- 2026-07-13 - CVE-2026-15536 published to NVD
- 2026-07-15 - Last updated in NVD database
Technical Details for CVE-2026-15536
Vulnerability Analysis
The vulnerability exists in the prescription view functionality of the Hospital Management System. The /patviewprescription.php script accepts a delid parameter used to identify a prescription record for deletion or lookup. The application concatenates the parameter value directly into a SQL statement without prepared statements or input validation.
An attacker submits crafted input in the delid parameter to break out of the intended SQL context. The database then executes attacker-controlled clauses alongside the legitimate query. Successful exploitation allows extraction of arbitrary data from application tables, modification of records, and — depending on database privileges — deletion of data or execution of stacked queries.
The attack requires network access to the application and low-privilege authenticated access. No user interaction is needed to trigger the flaw. A public proof of concept is referenced via the GitHub Issue Report and VulDB CVE-2026-15536.
Root Cause
The root cause is improper neutralization of user-supplied input incorporated into a SQL query. The delid parameter is not validated as an integer, escaped, or bound as a parameter. This maps directly to [CWE-74] and the SQL injection subclass.
Attack Vector
An authenticated attacker sends an HTTP request to /patviewprescription.php with a malicious delid value containing SQL syntax. Because the parameter is concatenated into the query, the injected clauses execute against the backend database. The vulnerability is exploitable remotely over the network.
No verified code examples are available. Refer to the VulDB Vulnerability #377886 entry and the GitHub Issue Report for the public proof-of-concept payload structure.
Detection Methods for CVE-2026-15536
Indicators of Compromise
- HTTP requests to /patviewprescription.php containing SQL metacharacters in the delid parameter, such as single quotes, UNION, SELECT, --, or ;.
- Web server access logs showing repeated requests to patviewprescription.php from a single source with varying delid values.
- Unexpected database errors or long-running queries originating from the Hospital Management System database user.
Detection Strategies
- Deploy web application firewall signatures that inspect the delid query string parameter for SQL syntax patterns.
- Enable database query logging and alert on queries against prescription tables that include tautologies (OR 1=1), boolean logic, or UNION SELECT constructs.
- Correlate authentication events with anomalous access to /patviewprescription.php from the same session.
Monitoring Recommendations
- Baseline normal request rates and parameter formats for /patviewprescription.php and alert on deviations.
- Monitor outbound database traffic for unusual result-set sizes that may indicate data exfiltration.
- Review authenticated user accounts for signs of credential abuse targeting the prescription module.
How to Mitigate CVE-2026-15536
Immediate Actions Required
- Restrict access to /patviewprescription.php to trusted networks or via VPN until a fix is applied.
- Audit the application's database account and reduce privileges to the minimum required for prescription operations.
- Review recent access logs for suspicious delid values and investigate any matches.
Patch Information
No vendor advisory or official patch has been published at the time of writing. Users should monitor the IT Source Code site and the VulDB CVE-2026-15536 entry for updates. Organizations maintaining local forks should modify /patviewprescription.php to use parameterized queries or prepared statements with type casting on delid.
Workarounds
- Apply a virtual patch at the web application firewall to block requests where delid is not a positive integer.
- Modify the source to cast delid to an integer, for example using intval($_GET['delid']) in PHP, before use in any query.
- Replace inline SQL construction with PDO prepared statements bound to typed parameters.
# Example ModSecurity rule to block non-numeric delid values
SecRule REQUEST_URI "@contains /patviewprescription.php" \
"chain,phase:2,deny,status:403,id:1015536,msg:'CVE-2026-15536 SQLi attempt'"
SecRule ARGS:delid "!@rx ^[0-9]+$" "t:none"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
