0.0
NA
CVE-2026-13422
HD Quiz 2.2.0 - 2.2.1 - Cross-Site Request Forgery via Multiple AJAX Handlers
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.

INFO

Published Date :

June 27, 2026, 1:27 a.m.

Last Modified :

June 27, 2026, 1:27 a.m.

Remotely Exploit :

No

Source :

Wordfence
Affected Products

The following products are affected by CVE-2026-13422 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Harmonicdesign hd_quiz
Solution
Update the HD Quiz plugin to patch Cross-Site Request Forgery vulnerabilities.
  • Update the HD Quiz plugin to the latest version.
  • Verify nonce validation is correctly implemented.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-13422 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.