CVE-2026-92364 Overview
CVE-2026-92364 is a SQL injection vulnerability in itsourcecode Leave Management System 1.0. The flaw resides in the /module/employee/index.php file, where the ID parameter is passed directly into a database query without proper sanitization. Attackers can manipulate the ID argument to inject arbitrary SQL statements against the backend database.
The vulnerability is remotely exploitable and requires low privileges. Public disclosure of the exploit technique has already occurred, increasing the likelihood of opportunistic attacks against exposed instances. The weakness is classified under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component.
Critical Impact
Authenticated attackers can extract, modify, or delete employee and leave records from the database through crafted ID parameter values sent to /module/employee/index.php.
Affected Products
- itsourcecode Leave Management System 1.0
- /module/employee/index.php endpoint
- Downstream MySQL database serving the employee module
Discovery Timeline
- 2026-09-16 - CVE-2026-92364 published to NVD
- 2026-09-16 - Last updated in NVD database
Technical Details for CVE-2026-92364
Vulnerability Analysis
The Leave Management System exposes an employee module at /module/employee/index.php that accepts an ID argument via HTTP request. The application concatenates this argument directly into a SQL query executed against the backend database. Because no parameterized queries or input validation are applied, the query parser interprets attacker-supplied SQL syntax as part of the statement.
Exploitation permits union-based extraction, boolean-based inference, and time-based blind techniques depending on the query context. An attacker with low authentication requirements can read arbitrary tables, including credentials and personally identifiable information stored for employees.
The scope remains limited to the vulnerable application's database. However, credential harvesting from the compromised database can enable lateral movement into related systems.
Root Cause
The root cause is direct concatenation of untrusted user input into a SQL statement. The ID parameter received through $_GET or $_POST is embedded into the query string without prepared statements, type casting, or escaping. This matches the CWE-74 injection pattern where control-plane data mixes with data-plane input.
Attack Vector
A remote attacker sends an HTTP request to /module/employee/index.php with a malicious ID value. Payloads typically include SQL metacharacters such as single quotes, UNION SELECT clauses, or comment sequences (--, #) to terminate the intended query and append attacker-controlled logic. Because the attack executes over the network with low complexity, automated scanners can identify and weaponize the flaw at scale. No verified exploit code is currently published in a public repository, though the vulnerability details have been disclosed via VulDB.
See the VulDB CVE-2026-92364 entry and GitHub issue discussion for additional technical context.
Detection Methods for CVE-2026-92364
Indicators of Compromise
- HTTP requests to /module/employee/index.php containing SQL metacharacters such as ', ", --, #, or /* in the ID parameter.
- Requests containing SQL keywords like UNION, SELECT, SLEEP, BENCHMARK, or INFORMATION_SCHEMA targeting the employee module.
- Anomalous outbound data volume from the web application database, indicating potential mass extraction.
Detection Strategies
- Deploy web application firewall (WAF) rules that inspect the ID parameter for SQL syntax patterns.
- Enable database query logging and alert on queries originating from /module/employee/index.php that contain UNION, subqueries, or unexpected WHERE clause structures.
- Correlate failed authentication events with subsequent successful queries against employee tables to identify credential extraction chains.
Monitoring Recommendations
- Monitor web server access logs for repeated requests to /module/employee/index.php with varying ID values from a single source IP.
- Baseline normal query patterns from the application service account and alert on deviations such as SELECT statements against mysql.user or information_schema.tables.
- Track unusually long response times on the employee module endpoint, which may indicate time-based blind SQL injection probing.
How to Mitigate CVE-2026-92364
Immediate Actions Required
- Restrict network access to the Leave Management System to trusted internal networks until a fix is applied.
- Audit the /module/employee/index.php file and refactor database calls to use parameterized queries or prepared statements.
- Rotate database credentials and review employee table contents for signs of unauthorized modification or exfiltration.
Patch Information
No official vendor patch has been published at the time of NVD disclosure. Administrators should monitor the IT Source Code Blog for vendor updates and apply source-level fixes to sanitize the ID parameter. Replace direct string concatenation with PDO prepared statements or mysqli_real_escape_string combined with strict type validation.
Workarounds
- Deploy a WAF rule that blocks requests to /module/employee/index.php where the ID parameter contains non-numeric characters.
- Enforce least-privilege database accounts so the web application user cannot access system tables or perform destructive operations.
- Disable or remove the employee module if it is not required for business operations until a fix is applied.
# Example ModSecurity rule to block non-numeric ID values
SecRule REQUEST_URI "@contains /module/employee/index.php" \
"chain,deny,status:403,id:1092364,msg:'CVE-2026-92364 SQLi attempt'"
SecRule ARGS:ID "!@rx ^[0-9]+$" "t:none"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
