CVE-2026-19020 Overview
CVE-2026-19020 is a SQL injection vulnerability in itsourcecode Hospital Management System version 1.0. The flaw resides in the /servicetype.php script, where the editid parameter is passed to a backend query without proper sanitization. Attackers can manipulate this parameter to inject arbitrary SQL statements against the underlying database. The vulnerability is remotely exploitable and requires only low-privilege authentication. A public exploit has been disclosed, increasing the risk of opportunistic abuse against exposed installations. The weakness is categorized under CWE-74 (Improper Neutralization of Special Elements in Output).
Critical Impact
Authenticated remote attackers can inject SQL through the editid parameter in /servicetype.php, exposing hospital records to unauthorized read or modification.
Affected Products
- itsourcecode Hospital Management System 1.0
- Component: /servicetype.php
- Parameter: editid
Discovery Timeline
- 2026-08-06 - CVE-2026-19020 published to NVD
- 2026-08-06 - Last updated in NVD database
Technical Details for CVE-2026-19020
Vulnerability Analysis
The vulnerability exists in the /servicetype.php endpoint of the Hospital Management System. This script accepts an editid parameter used to identify a service type record for editing. The parameter value is concatenated directly into a SQL statement rather than bound as a parameterized query value. As a result, attacker-supplied input is interpreted by the database engine as SQL syntax. The exploit has been publicly disclosed, which lowers the barrier to attack.
Root Cause
The root cause is improper neutralization of special elements in a query, mapped to [CWE-74]. The application concatenates the editid HTTP request parameter into a dynamic SQL statement without input validation, type casting, or the use of prepared statements. Any string containing SQL metacharacters such as single quotes, comment sequences, or UNION clauses alters the intended query structure.
Attack Vector
An attacker with authenticated access sends a crafted HTTP request to /servicetype.php with a malicious editid value. Typical payloads include boolean-based blind injection using appended AND clauses, UNION SELECT payloads to exfiltrate rows from other tables, or time-based payloads leveraging SLEEP() to confirm exploitability. Because the endpoint is reachable over the network, the attacker does not require local access. Successful exploitation allows read or modification of records including patient information, billing records, and account credentials.
No verified proof-of-concept code has been reviewed for inclusion. See the GitHub Issue Discussion and VulDB CVE-2026-19020 entry for technical details.
Detection Methods for CVE-2026-19020
Indicators of Compromise
- HTTP requests to /servicetype.php containing SQL metacharacters in the editid parameter, such as single quotes, --, /*, UNION, or SLEEP.
- Web server access logs showing unusually long or URL-encoded editid values from a single source.
- Database error messages referencing syntax errors correlated with requests to /servicetype.php.
Detection Strategies
- Deploy web application firewall rules that inspect the editid query parameter for SQL injection signatures.
- Enable database query logging and alert on UNION SELECT, INFORMATION_SCHEMA, or timing-function usage originating from the application account.
- Correlate authentication events with subsequent anomalous query patterns against the hospital database.
Monitoring Recommendations
- Forward web server and database logs to a centralized analytics platform for baseline and anomaly detection.
- Monitor for spikes in 500-series HTTP responses from /servicetype.php, which often indicate injection probing.
- Track outbound data volumes from the database host to identify potential exfiltration following injection.
How to Mitigate CVE-2026-19020
Immediate Actions Required
- Restrict network access to the Hospital Management System to trusted networks or place it behind a VPN.
- Deploy WAF rules that block SQL metacharacters and known injection payloads targeting the editid parameter.
- Rotate database credentials and audit the service_type and related tables for unauthorized modifications.
Patch Information
No vendor patch is referenced in the published advisory sources. Operators should monitor the itsourcecode site and the VulDB entry for updates. Until a fix is available, apply source-level remediation by rewriting the vulnerable query in /servicetype.php to use parameterized statements with PDO or mysqli prepared statements, and cast editid to an integer before use.
Workarounds
- Modify /servicetype.php to enforce intval($_REQUEST['editid']) before the value is used in any SQL statement.
- Replace inline SQL concatenation with prepared statements using bound parameters.
- Apply least-privilege database roles so the web application account cannot read tables outside its required scope.
# Example ModSecurity rule to block SQLi patterns on editid
SecRule ARGS:editid "@rx (?i)(union(\s|/\*.*\*/)+select|sleep\s*\(|--|/\*|')" \
"id:1026019020,phase:2,deny,status:403,msg:'CVE-2026-19020 SQLi attempt on servicetype.php editid'"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
