CVE-2026-10286: SQL Injection in CodeAstro Payroll System 1.0

Technical summary

CVE-2026-10286 is a SQL injection flaw (CWE-89, CWE-74) located in the /home_employee.php endpoint of CodeAstro Payroll System 1.0. The vulnerability stems from insufficient input validation on the emp_id parameter, which is directly incorporated into database queries without proper sanitization or parameterized statements. The attack vector is network-based and requires low-privilege user authentication. The CVSS 3.1 score of 6.3 (Medium) reflects moderate confidentiality, integrity, and availability impact within a single-user security context.

Business impact

A successful exploitation could allow payroll staff or other authenticated users to access employee personal data, modify compensation records, or disrupt payroll processing. Depending on attacker persistence and escalation, impacts could include regulatory non-compliance (labor law violations), employee trust erosion, and operational downtime. The threat is elevated because exploit code is publicly available, making casual misuse more likely than zero-day attacks.

Affected systems

CodeAstro Payroll System version 1.0 is confirmed vulnerable. Organizations running this payroll software with internet-facing or intranet-accessible instances are at risk. The /home_employee.php file is the attack surface. No information indicates earlier or later versions are affected, but administrators should consult CodeAstro's advisory to confirm patching scope.

Exploitability

Exploitability is moderate to high. An attacker must possess valid user credentials (limiting opportunistic attacks), but the SQL injection itself is straightforward to execute once authenticated. Public disclosure of exploits removes the need for vulnerability research or reverse engineering. Attack complexity is low—standard SQL injection techniques apply. The primary friction is credential acquisition; once obtained, an unprivileged employee account is sufficient.

Remediation

Immediately apply a vendor patch if available from CodeAstro. If no patch exists yet, implement network-level access controls to restrict /home_employee.php to trusted internal networks only, and enforce multi-factor authentication for payroll system users. As a temporary mitigation, consider disabling the emp_id parameter filtering or implementing Web Application Firewall (WAF) rules to block common SQL injection syntax.

Patch guidance

Check CodeAstro's official security advisory and release notes for the availability of a patched version. Apply updates in a test environment first to confirm compatibility with your payroll workflows and other integrated systems. Given the public nature of this vulnerability, prioritize patch deployment within 30 days of availability. If CodeAstro provides no immediate patch, escalate with the vendor for a security update timeline.

Detection guidance

Monitor access logs to /home_employee.php for unusual patterns, particularly requests with SQL keywords (UNION, SELECT, DROP, INSERT) in the emp_id parameter or other encoded variants. Enable database query logging and alert on failed or anomalous queries. Log successful data exports or modifications tied to user sessions that appear atypical. Use intrusion detection rules to flag SQL injection payloads in HTTP requests. Query access logs for employee IDs outside the normal range or multiple rapid requests.

Why prioritize this

Although this vulnerability carries a Medium CVSS score, its prioritization should be elevated due to public exploit availability, data sensitivity (employee payroll records), and the relatively easy attack path once credentials are obtained. Payroll systems are financially and legally significant—breaches trigger notification requirements and reputational damage. The lack of KEV designation should not lower internal priority below the vulnerability's actual risk to payroll-dependent organizations.

Risk score, explained

The CVSS 3.1 score of 6.3 reflects a network-reachable SQL injection requiring authenticated access, with low attack complexity and moderate impact to confidentiality, integrity, and availability within a single-user security context. The score does not account for the public availability of exploits or the high sensitivity of payroll data, both of which should inform organizational risk decisions independent of the CVSS number.

Frequently asked questions