CVE-2026-121652

DiscoveredNov 3, 2026UpdatedNov 3, 2026

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.

View graph Watch Export

CVSS v3.1

5.4 MEDIUM

EPSS

—%

probability of exploitation in 30 days

CISA KEV

Not listed

no confirmed exploitation reported

News coverage

sources referencing this CVE

Related IOCs

seen in the same coverage

CVSS v3.1 Detail

Attack VectorNETWORK

Attack ComplexityLOW

Privileges RequiredLOW

User InteractionREQUIRED

ScopeCHANGED

ConfidentialityLOW

IntegrityLOW

AvailabilityNONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Connections

2 relationships

CWE-79

source

Timeline

disclosure → media coverage

Nov 3, 2026

aws.amazon.com reports: CVE-2026-121652 - Stored cross-site scripting (XSS) in AWS Amplify maplibre-gl-js-amplify popup rendering

Nov 3, 2026

Disclosure — published as a CVE record.