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CVE-2026-111654

FastBee through 2.1.0 IDOR via /iot/group By-ID Endpoints

FastBee through 2.1.0 contains an insecure direct object reference vulnerability that allows authenticated low-privilege users to access other users' device groups because GroupController queries lack owner checks. Attackers, including self-registered users, can supply sequential group IDs to read, overwrite, reassign, rewrite device associations of, or delete other users' groups.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Kerwincui
Products
Fastbee
CVE-2026-110124

FastBee through 2.1.0 IDOR via DeviceController /iot/device Endpoints

FastBee through 2.1.0 contains an insecure direct object reference vulnerability in DeviceController that allows authenticated low-privilege users to read and modify other tenants' devices by supplying sequential device IDs. Self-registered attackers can enumerate deviceId or serialNumber values to read owner, IP, and location data, and overwrite user_id and tenant_id to take over devices.

CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed
Vendors
Kerwincui
Products
Fastbee
CVE-2026-7676

kerwincui FastBee Tool Download Endpoint ToolController.java ToolController.download path traversal

A vulnerability was found in kerwincui FastBee up to 1.2.1. The affected element is the function ToolController.download of the file springboot/fastbee-open-api/src/main/java/com/fastbee/data/controller/ToolController.java of the component Tool Download Endpoint. The manipulation of the argument fileName results in path traversal. The attack may be performed from remote. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Kerwincui
Products
Fastbee
CVE-2026-7677

kerwincui FastBee System Notice SysNoticeController.java add cross site scripting

A vulnerability was determined in kerwincui FastBee up to 1.2.1. The impacted element is the function Add of the file springboot/fastbee-admin/src/main/java/com/fastbee/web/controller/system/SysNoticeController.java of the component System Notice Handler. This manipulation of the argument noticeContent causes cross site scripting. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
Vendors
Kerwincui
Products
Fastbee