CVE-2017-20257: Joomplace Quiz Deluxe

High severity, CVSS 8.2. EPSS: 0.5% chance of exploitation in the next 30 days.

Joomla! Component Quiz Deluxe 3.7.4 contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL commands through the ajaxaction.flag_question task. Attackers can inject malicious SQL code via the stu_quiz_id or flag_quest parameters to manipulate database queries and extract sensitive information.

Affected products

• Joomplace Quiz Deluxe: version 3.7.4 only

Published 2026-06-19. Last modified 2026-08-19.