CVE-2019-18663: Isl Arp-Guard

Critical severity, CVSS 9.8. EPSS: 1.4% chance of exploitation in the next 30 days.

A SQL injection vulnerability in a /login/forgot1 POST request in ARP-GUARD 4.0.0-5 allows unauthenticated remote attackers to execute arbitrary SQL commands via the user_id parameter.

Affected products

• Isl Arp-Guard: version 4.0.0-5 only

Published 2019-11-04. Last modified 2026-06-17.