External risk intelligence

MapSVG SQL Injection Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.3)

CVE-2026-59526

The vulnerability affects a WordPress plugin designed to render interactive maps on websites. Such plugins are typically deployed on public-facing web servers to be visible to site visitors, making them commonly reachable from the internet.

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

A critical vulnerability has been identified in a widely used mapping plugin for websites, potentially allowing unauthorized access to sensitive data. This issue affects the plugin's ability to properly handle user inputs, creating an opening for attackers to inject malicious commands. The primary concern is to determine if our organization utilizes this specific plugin and, if so, to understand the potential exposure.

Allows attackers to inject harmful commands.
Affects website mapping plugins.
Confirm relevance and assess potential exposure.

Attack Path

How an attacker could exploit the issue

An unauthenticated attacker could exploit this vulnerability by sending specially crafted input to a web application that uses a vulnerable version of MapSVG. This could allow them to manipulate database queries, potentially leading to unauthorized access to sensitive data or disruption of services.

No authentication needed to attack.
Malicious input targets database queries.
Risk of data exposure or service disruption.

Live Threat

Current exploitation, exposure, and threat context

An unauthenticated SQL injection vulnerability in MapSVG could allow an attacker to interact with the application's database, potentially leading to unauthorized data access or modification under certain conditions. This could affect the integrity and availability of map data and associated information.

Database access and integrity.
Via specially crafted network requests.
Compromised map data or service disruption.

Operational Fix

Recommended remediation, mitigation, and detection steps

This unauthenticated SQL injection vulnerability in MapSVG likely impacts website owners and their infrastructure or platform teams responsible for managing WordPress plugins. The first practical step is to identify all instances of the affected plugin, confirm if they are externally accessible and critical to business operations, and then determine the specific owner for remediation planning.

Website owners own this issue.
Verify plugin presence and exposure.
Plan remediation based on risk.

Supplementary metadata

CVSS vector

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.

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Frequently asked questions

What is the MapSVG plugin?

MapSVG is a WordPress plugin used to create and display interactive, vector-based maps on websites. It allows site administrators to visualize data geographically, such as store locators or service areas, by integrating custom map designs directly into a web interface.

What does CVE-2026-59526 mean?

This CVE identifies a SQL Injection (CWE-89) vulnerability. In simple terms, the plugin fails to properly filter or clean data provided by users before including it in database commands. Because of this, an attacker can insert their own database instructions into the application, effectively tricking the system into performing unauthorized operations.

How is this SQL injection triggered?

An attacker triggers this by sending malicious, specially crafted network requests to the website hosting the vulnerable plugin. This process does not require the attacker to have an account or any special permissions on the site. Simply visiting or interacting with the site's public-facing features in a specific way is enough to initiate the harmful query; normal user interactions do not trigger the flaw.

Is my website at risk from this vulnerability?

According to Halo Surface Signal, this vulnerability is considered likely to be reachable from the internet because the plugin is designed to render maps for public web visitors. If your website uses a vulnerable version of the MapSVG plugin, it is exposed to external requests, meaning anyone on the internet could potentially attempt to interact with your site's underlying database.

What should I do if I use MapSVG?

Your first step is to locate every instance of the MapSVG plugin within your web infrastructure to confirm which versions are active. Once you have identified the affected sites, determine their level of accessibility and importance to your operations. Use this inventory to prioritize updates or protective measures, ensuring you know exactly which team is responsible for applying the necessary fixes.

References

patchstack.com/database/wordpress/plugin/mapsvg/vulnerability/wordpr…

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.