Threat Entry Updated 2026-06-29

CVE-2026-13422 - Hd Quiz Plugin

The HD Quiz plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions 2.2.0 to 2.2.1. This is due to missing or incorrect nonce validation on the hdq_validate_nonce function. This makes it possible for unauthenticated attackers to delete or modify quizzes and questions, create new quizzes, and change plugin settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

PLUGIN Hd Quiz

CVE-2026-13422

MEDIUM CVSS 4.3 2026-06-27

Risk Score

Open Full Technical Breakdown

Threat Entry Updated 2025-06-10

CVE-2024-13383 - Hd Quiz Plugin

The HD Quiz WordPress plugin before 2.0.0 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

PLUGIN Hd Quiz

CVE-2024-13383

MEDIUM CVSS 4.8 2025-05-15

Risk Score

Open Full Technical Breakdown

Threat Entry Updated 2024-11-21

CVE-2021-24571 - Hd Quiz Plugin

The HD Quiz WordPress plugin before 1.8.4 does not escape some of its Answers before outputting them in attribute when generating the Quiz, which could lead to Stored Cross-Site Scripting issues

PLUGIN Hd Quiz

CVE-2021-24571

MEDIUM CVSS 5.4 2021-08-23

Risk Score

Open Full Technical Breakdown