SQL Injection Vulnerability in Joomla! Component Quiz Deluxe by Joomplace
CVE-2017-20257

8.8HIGH

Key Information:

Vendor

Joomplace

Status
Quiz Deluxe
Vendor
CVE Published:
19 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2017-20257?

The Joomla! Component Quiz Deluxe version 3.7.4 is prone to an SQL injection vulnerability that enables unauthorized attackers to execute arbitrary SQL commands through specific parameters in the ajaxaction.flag_question task. By injecting malicious SQL code into the 'stu_quiz_id' or 'flag_quest' parameters, attackers can manipulate database queries, potentially leading to the extraction of sensitive information stored in the database.

Affected Version(s)

Quiz Deluxe 3.7.4

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2017-20257 - Proof of Concept

References

https://www.exploit-db.com/exploits/42589
exploit
http://joomplace.com/
product
https://extensions.joomla.org/extensions/extension/living...
product

CVSS V4

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ihsan Sencan
.