External risk intelligence

MapSVG Unauthenticated SQL Injection

CVE advisorySeverity: CRITICAL (CVSS 9.3)

CVE-2026-59527

The vulnerability affects a WordPress plugin, which functions as a web application component. WordPress plugins are commonly deployed as public-facing web elements, making the affected code path reachable via the internet as part of the standard website interface.

SQL Injection

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

An unauthenticated SQL injection vulnerability has been identified in a widely used mapping plugin, potentially allowing unauthorized access to backend systems. This issue could enable attackers to manipulate or extract sensitive data stored within the affected database. The primary concern is confirming whether our organization utilizes this specific plugin and, if so, assessing our exposure.

  • Attackers can inject malicious code via a mapping plugin.
  • It impacts data integrity and system security at a high level.
  • Assess plugin use to understand potential data risks.

Attack Path

How an attacker could exploit the issue

An attacker could target this vulnerability by sending specially crafted requests over the network. This exploit does not require any prior authentication or user interaction, as it targets a feature within the MapSVG plugin. Successful exploitation could allow an attacker to execute arbitrary SQL commands.

  • No authentication needed to attack.
  • SQL injection in the MapSVG plugin.
  • Potential for data compromise and control.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an unauthenticated attacker to inject malicious SQL code into a web application that uses a vulnerable version of the MapSVG plugin. This could lead to unauthorized access or manipulation of the application's database when the plugin's features are accessed.

  • Database data and integrity
  • Via unauthenticated requests to the plugin
  • Unauthorized access to sensitive information

Operational Fix

Recommended remediation, mitigation, and detection steps

This SQL injection vulnerability in MapSVG affects unauthenticated users and could allow for significant data compromise. Identifying all instances of the affected plugin, prioritizing those exposed externally or handling critical data, and confirming ownership are the immediate next steps. Remediation planning should then proceed based on the assessed risk and available maintenance windows.

  • Application owners should own the issue.
  • Verify external reachability and data criticality.
  • Plan remediation based on assessed risk.

Supplementary metadata

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

Frequently asked questions

What is MapSVG?

MapSVG is a WordPress plugin used to create interactive vector maps and floor plans for websites. It allows site administrators to display geographic or custom data visually. Because it is a WordPress plugin, it functions as a component of your website's interface, running on the server to process requests and deliver map content to visitors.

What does SQL injection mean for CVE-2026-59527?

This vulnerability falls under the weakness class of SQL Injection (CWE-89). It means the plugin fails to properly sanitize user-supplied data before including it in database queries. An attacker can input malicious commands that the database interprets as part of a legitimate query, potentially letting them read or manipulate data that the application is supposed to protect.

How can an attacker trigger this vulnerability?

An attacker triggers this bug by sending specially crafted network requests directly to the affected plugin functions. Crucially, this requires no user interaction and no login credentials, meaning the attacker does not need to be a registered site user or have administrative permissions to send these requests and attempt to influence the database.

Is my site at risk according to Halo Surface Signal?

Halo Surface Signal classifies this as an external threat because the plugin operates as a web-facing component. Since WordPress plugins are typically integrated into public-facing pages, the vulnerable code path is often reachable over the internet. You should consider any site using this plugin as potentially exposed to remote attackers.

How do I respond to CVE-2026-59527?

First, audit your WordPress installations to identify which sites are running version 8.14.0 or earlier of the MapSVG plugin. Once identified, prioritize these instances based on the sensitivity of the data stored in their databases. Verify your current plugin versions and coordinate with your web maintenance team to plan for updates or temporary mitigation while you address the underlying risk.

References