FIBARO System Home Center 5.021 contains a remote file inclusion vulnerability in the undocumented proxy API that allows attackers to include arbitrary client-side scripts. Attackers can exploit the 'url' GET parameter to inject malicious JavaScript and potentially hijack user sessions or manipulate page content.
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5563.php
https://www.vulncheck.com/advisories/fibaro-system-home-center-remote-file-inclusion-via-proxy-api
https://www.exploit-db.com/exploits/48240
https://packetstorm.news/files/id/156869
Published: 2026-01-06
Updated: 2026-04-15
Base Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N
Severity: High
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Severity: High
Base Score: 5.1
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Severity: Medium
EPSS: 0.00049