Is CVE-2017-20257 actively exploited?

No active exploitation of CVE-2017-20257 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-20257 be exploited remotely?

Yes. CVE-2017-20257 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-20257?

CVE-2017-20257 has a CVSS score of 8.2 (HIGH).

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HIGH

CVE-2017-20257

CWE-89Published: June 19, 2026· Updated: Jun 22, 2026

8.2

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2017-20257 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 8.2.

From a weakness classification perspective (CWE-89): SQL injection vulnerabilities allow attackers to manipulate database queries, potentially exposing or modifying sensitive data.