External risk intelligence

Emlog allows attackers to steal customer data or destroy services

CVE advisorySeverity: CRITICAL (CVSS 10.0)

CVE-2026-42287

A critical flaw in Emlog allows unauthenticated attackers to steal data or destroy websites by injecting malicious commands directly into the database. Update Emlog now to prevent potential system compromise.

4Halo Surface Signal

SQL Injection

External exposure likelihood

Halo Surface Signal score for CVE-2026-42287

Emlog is a website content management system. The vulnerability affects the administrative interface, which is a web-based management surface commonly deployed to be reachable via the internet for remote site administration. As an externally accessible management component of a web application, it falls into the category of internet-reachable surfaces.

Horizon Alert

Summary of the vulnerability and why it matters

This critical vulnerability in Emlog allows attackers to execute arbitrary SQL commands by exploiting flaws in article creation and update functions. This could lead to full database compromise, data theft, or system destruction without requiring any special privileges.

  • Attackers can compromise data.
  • Affects Emlog website systems.
  • Issue is reachable from the internet.

Attack Path

How an attacker could exploit the issue

An unauthenticated attacker can exploit this SQL injection vulnerability in Emlog by submitting specially crafted article creation or update requests. This allows them to execute arbitrary SQL commands, potentially leading to full database compromise, including data theft or destruction.

  • No authentication required.
  • Target article creation/update functions.
  • Complete database compromise possible.

Live Threat

Current exploitation, exposure, and threat context

This SQL injection vulnerability in Emlog is highly concerning because it allows unauthenticated attackers to directly manipulate the database. Such vulnerabilities can be very attractive to attackers aiming for widespread compromise of web content management systems. While there is no current public exploit or known exploitation, the critical nature and direct database access point strongly suggest it could be weaponized.

  • Direct database compromise possible.
  • No public exploit yet.
  • Patch released recently.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

Prioritize patching Emlog to version 2.6.11 immediately, as this critical SQL injection vulnerability allows unauthenticated attackers to achieve complete database compromise. If patching is delayed, implement strict network access controls to limit exposure of the Emlog administrative interface. Monitor database logs for any unusual queries originating from Emlog.

  • Apply Emlog version 2.6.11.
  • Restrict network access to Emlog.
  • Monitor Emlog database activity.

Frequently asked questions

What is Emlog and what is it used for?

Emlog is an open-source system used for building websites. It allows users to create and manage website content, functioning as a content management system.

What type of vulnerability does CVE-2026-42287 represent?

CVE-2026-42287 is a direct SQL injection vulnerability. This weakness class (CWE-89) means an attacker can insert malicious SQL code into data inputs to manipulate the database.

How can an attacker exploit this Emlog vulnerability?

An attacker can exploit this vulnerability by submitting specially crafted requests during the creation or updating of articles within Emlog. Exploitation does not require any prior authentication or special privileges.

Who should be concerned about this Emlog vulnerability?

Organizations using Emlog should be concerned. Halo Surface Signal indicates this vulnerability is externally facing, meaning it's accessible from the internet, making it a significant risk for internet-facing web applications.

What is the first step to address this vulnerability in Emlog?

The immediate first step is to update Emlog to version 2.6.11 or later. This version contains the fix for the SQL injection vulnerability.

References