What is CVE-2017-20257?

CVE-2017-20257 is a high-severity vulnerability in Joomplace Quiz Deluxe, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-06-19.

How severe is CVE-2017-20257?

High severity. CVSS v3 base score is 8.2 out of 10.

SQL Injection in Joomplace Quiz Deluxe

CVE-2017-20257

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…

Vulnerability class: SQL Injection

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.

Affected products

Joomplace Quiz Deluxe — versions 3.7.4

Weakness classification (CWE)

CWE-89 — SQL Injection

References

disclosure@vulncheck.com (product)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2017-20257?: CVE-2017-20257 is a high-severity vulnerability in Joomplace Quiz Deluxe, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-06-19.
How severe is CVE-2017-20257?: High severity. CVSS v3 base score is 8.2 out of 10.