CVE-2018-15584: Sir Gnuboard

Medium severity, CVSS 6.1. EPSS: 1.1% chance of exploitation in the next 30 days.

Cross-Site Scripting (XSS) vulnerability in adm/boardgroup_form_update.php and adm/boardgroup_list_update.php in gnuboard5 before 5.3.1.6 allows remote attackers to inject arbitrary web script or HTML.

Affected products

• Sir Gnuboard: before 5.3.1.6 (fixed in 5.3.1.6)

Published 2019-04-26. Last modified 2026-06-17.