CVE-2026-14689: SQL Injection in CodeAstro Apartment Visitor Management System 1.0

Technical summary

CVE-2026-14689 is a SQL injection flaw (CWE-89, CWE-74) in /apartment-visitor/add-apartment.php within CodeAstro's system. The vulnerability exists in the handling of the 'apartmentno' parameter, which is not properly sanitized before being used in database queries. The flaw requires valid user credentials (CVSS authentication requirement: PR:L) but allows unauthenticated database operations once inside. The remote, unauthenticated network vector combined with low complexity makes this exploitable by anyone with legitimate system access. Public exploit code availability significantly lowers the barrier to weaponization.

Business impact

Organizations deploying CodeAstro Apartment Visitor Management System 1.0 face data breach risk, including exposure of resident information, financial records, and tenant databases. Attackers can manipulate visitor logs, create unauthorized access records, or launch ransomware attacks following reconnaissance via database exfiltration. Operational disruption occurs if the attacker modifies or deletes critical database tables. Regulatory exposure exists if PII (resident names, contact information) is compromised under GDPR, CCPA, or local data protection laws.

Affected systems

CodeAstro Apartment Visitor Management System version 1.0 is affected. The vendor product list in the source data is empty; verify whether other CodeAstro versions or related products from the same vendor are impacted by checking the vendor's security advisory. Organizations should audit deployment across all properties or facilities using this specific version.

Exploitability

This vulnerability is readily exploitable. Proof-of-concept code is publicly disclosed, and exploitation requires only network access plus valid user credentials—a common scenario in apartment management settings where staff accounts are shared or lightly managed. The low attack complexity (AC:L) and absence of user interaction (UI:N) mean attackers can automate repeated exploitation attempts. The lack of CVSS critical impact factors reflects the authenticated requirement, but the public availability of working exploits makes active attacks likely in the near term.

Remediation

Immediately discontinue use of CodeAstro Apartment Visitor Management System 1.0 or apply vendor patches if available. Verify patched version availability by consulting the CodeAstro security advisory. Interim mitigations include: (1) restricting network access to the /apartment-visitor/add-apartment.php endpoint via firewall rules or Web Application Firewall (WAF) signatures; (2) enforcing strong password policies and multi-factor authentication for administrative and staff accounts; (3) implementing database query parameterization or prepared statements if source code access is available. Monitor database logs for anomalous query patterns indicative of SQL injection attempts.

Patch guidance

Check the CodeAstro vendor advisory for released patch versions. Verify patch availability and compatibility with your deployment before applying. If patches are unavailable, plan migration to an alternative apartment management system with demonstrated security practices. Test patches in a non-production environment first. After patching, flush any cached or compiled versions of affected scripts to ensure the updated code is loaded.

Detection guidance

Monitor for SQL injection attack patterns in application and database logs: look for unusual characters or SQL keywords (UNION, SELECT, DROP, INSERT) in the 'apartmentno' parameter within HTTP requests to /apartment-visitor/add-apartment.php. Enable database query logging and search for queries containing suspicious syntax. Configure WAF rules to block common SQL injection payloads targeting numeric parameters. Track failed database authentication attempts and privilege escalations following the patch date, as post-compromise activity may continue.

Why prioritize this

Although the CVSS score is MEDIUM (6.3), the combination of public exploits, authenticated-but-likely access (staff credentials are common), and direct database manipulation risk warrants prompt attention. The vulnerability affects core business logic (visitor access tracking) and resident data, creating legal and operational urgency. The absence of KEV status does not reduce risk; it reflects the recency of disclosure. Prioritize patching or migration within 30 days.

Risk score, explained

CVSS 6.3 reflects the requirement for authentication (PR:L), which prevents completely anonymous exploitation but does not mitigate the threat since user accounts in apartment management systems are frequently shared, poorly managed, or compromise-prone. The confidentiality, integrity, and availability impacts (C:L, I:L, A:L) are conservative; SQL injection in a database-dependent system often permits full compromise once credentials are obtained. The network vector (AV:N) and low complexity (AC:L) are significant risk multipliers. Public exploit availability elevates practical exploitability beyond the base CVSS calculation.

Frequently asked questions