CVE-2017-20257

HIGH 8.2

Joomla! Component Quiz Deluxe 3.7.4 SQL Injection

CVSS Score

8.2

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-89
Vendor	joomplace
Product	quiz deluxe
Published	Jun 19, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

None

Affected Versions

Joomplace / Quiz Deluxe

3.7.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/42589 joomplace.com: http://joomplace.com/ extensions.joomla.org: https://extensions.joomla.org/extensions/extension/living/education-a-culture/quiz-deluxe/ vulncheck.com: https://www.vulncheck.com/advisories/joomla-component-quiz-deluxe-sql-injection

Credits

Ihsan Sencan