CVE-2026-123475 in MapSVG Plugin
Summary
by MITRE • 11/09/2026
Missing Authorization vulnerability in PT Norther Lights Production MapSVG mapsvg-lite-interactive-vector-maps allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MapSVG: from n/a through 8.16.3.
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Analysis
by VulDB Data Team • 11/09/2026
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 8.16.3. This vulnerability is classified as a Missing Authorization issue, which fundamentally indicates that the software fails to properly verify whether an authenticated user has the necessary privileges to perform specific actions or access certain resources. In the context of web-based interactive vector maps, this typically manifests when endpoints responsible for rendering map data, handling user interactions, or managing configuration settings do not enforce strict checks on the requester's identity and role before processing requests. Consequently, attackers can exploit incorrectly configured security levels by manipulating HTTP parameters to bypass intended restrictions, thereby gaining unauthorized access to sensitive mapping data or administrative functions that should be restricted to authorized personnel only.
From a technical perspective, this flaw aligns with CWE-285, which describes Improper Authorization, and is closely related to the concept of Insecure Direct Object References if specific map identifiers are manipulated to access resources belonging to other users or systems. The operational impact of such a vulnerability can be severe, particularly in applications where MapSVG is integrated into enterprise dashboards, geographic information systems, or public-facing portals that rely on accurate and secure data presentation. An attacker could potentially view confidential location-based intelligence, modify map configurations to disrupt service availability, or extract sensitive metadata embedded within the vector maps. This not only compromises the confidentiality of the underlying data but also undermines the integrity of the application by allowing unauthorized modifications to visual representations and associated logic.
The exploitation of this vulnerability does not require complex payload construction; rather, it relies on the attacker's ability to identify valid endpoints or parameters that lack proper server-side validation. By intercepting network traffic using standard proxy tools, an adversary can modify request headers or body content to escalate privileges or access restricted areas of the application interface. This simplicity makes the vulnerability particularly dangerous in automated scanning environments where bots systematically probe for common authorization bypass patterns. The widespread use of MapSVG across various web applications amplifies the risk profile, as many developers may assume that client-side controls are sufficient without implementing robust server-side verification mechanisms.
To mitigate this vulnerability, organizations must implement strict server-side access control checks on all endpoints related to map rendering and configuration. This involves ensuring that every request is validated against a centralized authorization service or role-based access control list before any data is processed or returned to the client. Developers should adopt the principle of least privilege, granting users only the minimum permissions necessary for their specific tasks. Additionally, regular security audits and penetration testing focused on broken object level authorization patterns are essential to identify such gaps early in the development lifecycle. Upgrading to a patched version of MapSVG beyond 8.16.3 is the primary remediation step if available from the vendor, but relying solely on software updates without addressing architectural flaws in access control logic leaves systems vulnerable to similar issues in other components. Implementing comprehensive logging and monitoring for unauthorized access attempts can also aid in detecting exploitation activities in real time, allowing security teams to respond promptly to potential breaches.