CVE-2026-13422
Received Received - Intake
Cross-Site Request Forgery in HD Quiz WordPress Plugin

Publication date: 2026-06-27

Last updated on: 2026-06-27

Assigner: Wordfence

Description
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.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-06-27
Last Modified
2026-06-27
Generated
2026-06-27
AI Q&A
2026-06-27
EPSS Evaluated
N/A
NVD
CVE-2026-13422
EUVD
EUVD-2026-39932
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
hd_quiz hd_quiz From 2.2.0 (inc) to 2.2.1 (inc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-352 The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

The HD Quiz plugin for WordPress versions 2.2.0 to 2.2.1 has a Cross-Site Request Forgery (CSRF) vulnerability. This occurs because the plugin's hdq_validate_nonce function lacks proper nonce validation. As a result, an attacker can trick a site administrator into performing unintended actions by sending forged requests.

  • Unauthenticated attackers can delete or modify quizzes and questions.
  • Attackers can create new quizzes.
  • Attackers can change plugin settings.
Impact Analysis

This vulnerability allows attackers to manipulate quiz content and plugin settings without authentication by tricking an administrator. This can lead to unauthorized changes in quizzes, potentially disrupting the integrity and reliability of quiz data.

Such unauthorized modifications may affect user experience, cause data loss or corruption, and undermine trust in the affected WordPress site.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-13422. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart