---
id: CVE-2026-121652
title: >-
  Stored cross-site scripting (XSS) in AWS Amplify maplibre-gl-js-amplify popup
  rendering
summary: >-
  Cross-site scripting (XSS) issue in AWS Amplify maplibre-gl-js-amplify before
  4.0.3 might allow remote authenticated users to inject arbitrary web script or
  HTML via the (1) title, (2) address, or (3) place_name property in GeoJSON
  featu…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: AWS
product: maplibre-gl-js-amplify
affected:
  - maplibre-gl-js-amplify < 4.0.3
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-03T20:00:46.727903Z'
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T20:01:00.960Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121652'
references:
  - url: 'https://github.com/aws-amplify/maplibre-gl-js-amplify/releases/tag/v4.0.3'
  - url: >-
      https://github.com/aws-amplify/maplibre-gl-js-amplify/security/advisories/GHSA-34v3-xxqp-g5g9
  - url: 'https://aws.amazon.com/security/security-bulletins/2026-167-aws/'
tags:
  - cve.org
epss: 0.00264
epssPercentile: 0.18336
ingestedAt: '2026-11-05T20:33:06.427Z'
---

## Overview

Cross-site scripting (XSS) issue in AWS Amplify maplibre-gl-js-amplify before 4.0.3 might allow remote authenticated users to inject arbitrary web script or HTML via the (1) title, (2) address, or (3) place_name property in GeoJSON feature data rendered by popupRender, or the (4) geofenceId value rendered in AmplifyGeofenceControl.



To remediate this issue, users should upgrade to 4.0.3 or later.

## Affected

- `maplibre-gl-js-amplify < 4.0.3`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.