CVE-2026-14796: Apartment Visitor Management SQL Injection

CVE-2026-14796 Overview

CVE-2026-14796 is a SQL injection vulnerability in CodeAstro Apartment Visitor Management System 1.0. The flaw resides in the /apartment-visitor/report.php script, where the fromdate request parameter is passed to a database query without proper sanitization. Remote attackers with low-level privileges can manipulate the parameter to inject arbitrary SQL statements. Public disclosure of the exploit technique increases the likelihood of opportunistic scanning against exposed installations. The issue 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 into the fromdate parameter of report.php to read or alter visitor management data.

Affected Products

CodeAstro Apartment Visitor Management System 1.0
Deployments exposing /apartment-visitor/report.php to untrusted networks
Installations that have not applied vendor-supplied input validation fixes

Discovery Timeline

2026-07-06 - CVE-2026-14796 published to NVD
2026-07-06 - Last updated in NVD database

Technical Details for CVE-2026-14796

Vulnerability Analysis

The vulnerability exists in the reporting component of the Apartment Visitor Management System. The report.php endpoint accepts a fromdate argument used to filter visitor records by date range. The application concatenates the user-supplied value directly into a SQL statement without parameterized queries or input validation. An attacker submitting crafted SQL syntax through this parameter can alter the query logic executed by the backend database.

Exploitation requires network access to the web application and low-level privileges within the platform. Successful injection can expose visitor records, resident information, and administrative metadata stored in the database. Depending on database user permissions, attackers may also modify records or execute stacked queries. The exploit technique has been published, which lowers the technical barrier for reproduction.

Root Cause

The root cause is improper neutralization of special elements passed to the SQL interpreter, aligning with [CWE-74]. The fromdate value flows from an HTTP request parameter into a SQL string without prepared statement bindings or escaping. Any input containing SQL metacharacters is interpreted as part of the query grammar.

Attack Vector

The attack vector is remote over the network. An authenticated user sends an HTTP request to /apartment-visitor/report.php with a malicious fromdate payload such as a UNION-based or boolean-based SQL injection string. The backend query executes with the injected clauses, returning data from adjacent tables or revealing information through response differentials. No user interaction beyond the attacker's own request is required.

Refer to the GitHub issue for CVE-2026-14796 and the VulDB entry for CVE-2026-14796 for reported reproduction details.

Detection Methods for CVE-2026-14796

Indicators of Compromise

HTTP requests to /apartment-visitor/report.php containing SQL metacharacters such as single quotes, UNION SELECT, --, or SLEEP( within the fromdate parameter
Web server logs showing anomalous response sizes or 500-level errors correlated with fromdate values
Database logs recording syntactically unusual queries originating from the application user

Detection Strategies

Deploy web application firewall (WAF) rules that inspect the fromdate parameter for SQL injection signatures
Enable database query logging and alert on queries that deviate from expected report query templates
Correlate authenticated session identifiers with suspicious query patterns to identify abusing accounts

Monitoring Recommendations

Monitor outbound data volumes from the application database for unusual spikes indicative of bulk record extraction
Track failed and successful login attempts against the Apartment Visitor Management System to identify credentialed attackers preparing to exploit the endpoint
Review access logs periodically for requests to report.php originating from unexpected IP ranges or user agents

How to Mitigate CVE-2026-14796

Immediate Actions Required

Restrict network exposure of the Apartment Visitor Management System to trusted internal networks or VPN users
Rotate credentials for any accounts that could reach the report.php endpoint if compromise is suspected
Apply WAF signatures blocking SQL metacharacters in the fromdate parameter until a code-level fix is available

Patch Information

At the time of publication, no vendor-supplied patch is referenced in the NVD entry. Administrators should monitor the CodeAstro website and the VulDB record for CVE-2026-14796 for remediation updates. Interim code fixes should replace string concatenation with parameterized queries or prepared statements when handling the fromdate parameter.

Workarounds

Implement server-side input validation that accepts only ISO date formats for fromdate and rejects all other characters
Enforce least-privilege database accounts so the web application cannot read tables outside its functional scope
Disable or remove the reporting endpoint if it is not required for business operations

bash

# Example Apache rewrite rule to block non-date characters in the fromdate parameter
RewriteEngine On
RewriteCond %{QUERY_STRING} (^|&)fromdate=[^&]*[^0-9\-][^&]* [NC]
RewriteRule ^/apartment-visitor/report\.php$ - [F,L]