CVE-2018-15480

Severity: high (CVSS 8.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-08-30 · updated 2026-06-17

Description

An issue was discovered in myStrom WiFi Switch V1 before 2.66, WiFi Switch V2 before 3.80, WiFi Switch EU before 3.80, WiFi Bulb before 2.58, WiFi LED Strip before 3.80, WiFi Button before 2.73, and WiFi Button Plus before 2.73. The cloud API had a hidden parameter, which allowed an authenticated user to reconfigure the server URL for a device registered to their account. In combination with an insecure device registration vulnerability, this allowed an attacker to reconfigure a maliciously registered device to their own rogue replica of the myStrom API and issue commands to the device, including firmware update commands.

Affected products

Mystrom Wifi Bulb Firmware: before 2.58 — fixed in 2.58
Mystrom Wifi Button Firmware: before 2.73 — fixed in 2.73
Mystrom Wifi Button Plus Firmware: before 2.73 — fixed in 2.73
Mystrom Wifi Led Strip Firmware: before 3.80 — fixed in 3.80
Mystrom Wifi Switch Eu Firmware: before 3.80 — fixed in 3.80
Mystrom Wifi Switch Firmware: before 2.66; before 3.80 — fixed in 2.66, 3.80

How to fix

Upgrade to a fixed version: Mystrom Wifi Bulb Firmware 2.58; Mystrom Wifi Button Firmware 2.73; Mystrom Wifi Button Plus Firmware 2.73; Mystrom Wifi Led Strip Firmware 3.80; Mystrom Wifi Switch Eu Firmware 3.80; Mystrom Wifi Switch Firmware 2.66, 3.80. Check the vendor advisory for mitigations.

References

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