CVE-2026-111397 in MapSVG Plugin
Summary
by MITRE • 10/16/2026
Missing Authorization vulnerability in PT Norther Lights Production MapSVG mapsvg-lite-interactive-vector-maps allows Retrieve Embedded Sensitive Data.This issue affects MapSVG: from n/a through 8.16.1.
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Analysis
by VulDB Data Team • 10/16/2026
The identified security flaw represents a critical failure in access control mechanisms within the MapSVG library, specifically affecting versions ranging from initial releases up to version 8.16.1. This vulnerability is classified as an Insecure Direct Object Reference or Broken Access Control issue, where the application fails to enforce proper authorization checks before granting access to internal resources. The core technical flaw lies in the absence of server-side validation for user permissions when requests are made to retrieve embedded data structures associated with interactive vector maps. Because MapSVG relies heavily on client-side rendering and dynamic content loading, this misconfiguration allows an unauthenticated or unauthorized actor to bypass intended security boundaries by directly manipulating request parameters to access sensitive configuration files, coordinate datasets, or proprietary map definitions that were not meant for public consumption.
From a technical perspective, the vulnerability exploits the trust placed in client-side identifiers without corresponding server-side verification of user privileges. When a user interacts with an interactive vector map, the system often loads additional data layers or metadata to enhance functionality. In this flawed implementation, these requests do not verify whether the requesting session has the requisite role or permission level to view specific embedded assets. Consequently, any individual who can generate valid HTTP requests against the MapSVG endpoints can enumerate and download sensitive information such as internal network topologies, proprietary geographic data, or administrative configuration details that may contain further security credentials or architectural insights useful for subsequent attacks.
The operational impact of this vulnerability is significant, particularly in environments where MapSVG is used to display business-critical spatial data on public-facing dashboards or customer portals. The ability to retrieve embedded sensitive data can lead to a severe compromise of confidentiality and potentially integrity if the retrieved data includes configuration parameters that influence system behavior. Attackers could leverage this information for reconnaissance purposes, mapping out internal structures or identifying other potential attack vectors based on exposed metadata. In worst-case scenarios, if the embedded data contains API keys, database connection strings, or authentication tokens, it could facilitate further unauthorized access to backend systems, leading to broader network compromise and data exfiltration beyond just the map-related assets.
This vulnerability aligns with CWE-284, which describes Improper Access Control, specifically highlighting failures in authorization logic that allow users to act outside their intended permissions. It also maps directly to MITRE ATT&CK technique T1078, Valid Accounts, and more broadly to reconnaissance activities under the Initial Access or Discovery tactics where adversaries gather information about target infrastructure. The lack of proper validation means that even if authentication is present for other parts of the application, this specific endpoint remains exposed due to insufficient authorization checks on resource access.
To mitigate this risk, developers must implement strict server-side authorization checks for all endpoints serving MapSVG data or embedded resources. This involves verifying user roles and permissions before processing any request related to map layers, metadata retrieval, or asset loading. Input validation should also be enforced to ensure that only expected file types and paths are accessible, preventing path traversal attacks that might accompany the exploitation of this flaw. Additionally, applying principle of least privilege ensures that even if an attacker gains access to these endpoints, they cannot retrieve data beyond their authorized scope. Upgrading to a patched version of MapSVG where this issue has been resolved is essential for long-term security posture improvement.