External risk intelligence

Attendance system lets attackers take control of customer data

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2026-37749

A critical flaw in the CodeAstro attendance system allows anyone to log in without credentials, potentially exposing sensitive company data. This vulnerability is easily exploitable over the internet.

4Halo Surface Signal

SQL Injection

External exposure likelihood

Halo Surface Signal score for CVE-2026-37749

The vulnerability affects a web-based attendance management system, which operates as a standard web application. Such systems are commonly deployed in configurations accessible via the internet to facilitate remote access for employees or users, making the login interface, and thus the vulnerable surface, reachable in many real-world deployments.

Horizon Alert

Summary of the vulnerability and why it matters

This critical vulnerability in CodeAstro Simple Attendance Management System allows unauthenticated attackers to bypass login controls. If exploited, an attacker could gain unauthorized access to sensitive attendance data.

  • Attackers can access system without credentials.
  • Affects attendance records.
  • Reachable from the internet.

Attack Path

How an attacker could exploit the issue

An unauthenticated attacker can exploit this vulnerability by sending specially crafted SQL commands in the username field of the login page. This would allow them to bypass the authentication mechanism, gaining unauthorized access to the system.

  • Network accessible login page.
  • Targets index.php.
  • SQL injection bypasses authentication.

Live Threat

Current exploitation, exposure, and threat context

This SQL injection vulnerability in the Simple Attendance Management System, allowing unauthenticated remote attackers to bypass authentication, is a critical flaw. Its impact is magnified by its accessibility over the network and the fact that no user interaction is required for exploitation. Such vulnerabilities are highly attractive to attackers because they can provide direct access to sensitive systems and data.

  • Public exploit code exists.
  • The vendor product is an open-source system.
  • The vulnerability is actively being tracked.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

Prioritize immediate containment of systems running CodeAstro Simple Attendance Management System v1.0, as this SQL injection vulnerability is critical and allows unauthenticated remote attackers to bypass authentication. Given the unauthenticated nature and critical severity, assume compromise and investigate for unauthorized access or data exfiltration. If the system is publicly accessible, consider taking it offline immediately to prevent further exploitation while assessing mitigation options.

  • Isolate affected systems from the network.
  • Block traffic to the vulnerable index.php endpoint.
  • Monitor logs for authentication bypass attempts.

Frequently asked questions

What is the CodeAstro Simple Attendance Management System?

The CodeAstro Simple Attendance Management System is a software designed to track and manage employee attendance. It is used for recording who is present, absent, or late, likely for payroll or HR purposes.

What kind of weakness does CVE-2026-37749 represent?

CVE-2026-37749 is a SQL injection vulnerability (CWE-89). This means an attacker can manipulate database queries by inserting malicious SQL code into input fields, potentially allowing them to access or modify sensitive data.

How could an attacker exploit this CVE-2026-37749 vulnerability?

An attacker could exploit this by sending specially crafted input to the username field on the login page (index.php). This malicious input would trick the system into executing unintended SQL commands, bypassing the need for a valid username or password.

Who should be concerned about CVE-2026-37749?

Organizations using the CodeAstro Simple Attendance Management System v1.0 should be concerned. The Halo Surface Signal indicates this system is likely internet-facing, meaning attackers could potentially reach it from outside the organization's internal network.

What are the first steps to respond to this threat?

If you are running CodeAstro Simple Attendance Management System v1.0, immediately isolate affected systems from the network. Consider blocking access to the vulnerable login page, index.php, and carefully review system logs for any signs of unauthorized access or data manipulation.

References