CVE-2018-18673: Sir Gnuboard

Medium severity, CVSS 6.1. EPSS: 1.5% chance of exploitation in the next 30 days.

GNUBOARD5 5.3.1.9 has XSS that allows remote attackers to inject arbitrary web script or HTML via the "Menu Link" parameter, aka the adm/menu_list_update.php me_link parameter.

Affected products

• Sir Gnuboard: version 5.3.1.9 only

Published 2019-07-23. Last modified 2026-06-17.