Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2017-20257

CVE-2017-20257HIGH

Joomplace Quiz Deluxe — Joomla! Component Quiz Deluxe 3.7.4 SQL Injection

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   H   L   N    8.8   .0049   40.1     —

AFFECTED
  Product      Versions  Fixed
  Quiz Deluxe  3.7.4 –   —

TIMELINE
  Jun 19  Reserved by VulnCheck
  Jun 19  Published (CNA: VulnCheck)
  Aug 19  EXPLOIT PUBLISHED — CVE-2017-20257 (Joomplace Quiz Deluxe). Public exploit reference added.

CWE-89 · CNA: VulnCheck · CVSS v4.0 · 4 references · NVD status: Analyzed

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 19, 2026	Reserved	Reserved by VulnCheck
June 19, 2026	Published	Published (CNA: VulnCheck)
August 19, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2017-20257 (Joomplace Quiz Deluxe). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Joomplace	Quiz Deluxe	—	3.7.4	—

Weaknesses

CWE-89

References (4)

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

Authoritative record: CVE-2017-20257 at cve.org

Vendors: joomplace

Weaknesses: CWE-89

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2017-20257 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.