Harmonic Design vulnerabilities

Products

• HD Quiz 3
• HD Quiz – Save Results Light 1
• HDForms 1

Latest Harmonic Design CVEs

Newest publication first

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

   Published 2026-06-27

   Medium·CVSS 4.3 EPSS 0.26%

   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 q...

2. CVE-2026-24544 WordPress HD Quiz plugin <= 2.0.9 - Broken Access Control vulnerability

   Published 2026-01-23

   Medium·CVSS 4.3 EPSS 0.23%

   Missing Authorization vulnerability in Harmonic Design HD Quiz hd-quiz allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects HD Quiz: from n/a through <= 2.0.9.

3. CVE-2025-68912 WordPress HDForms plugin <= 1.6.1 - Arbitrary File Deletion vulnerability

   Published 2026-01-22

   High·CVSS 8.6 EPSS 0.64%

   Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Harmonic Design HDForms hdforms allows Path Traversal.This issue affects HDForms: from n/a through <= 1.6.1.

4. CVE-2024-49689 WordPress HD Quiz – Save Results Light plugin <= 0.5 - Broken Access Control vulnerability

   Published 2024-11-19

   Medium·CVSS 5.4 EPSS 0.48%

   Missing Authorization vulnerability in Harmonic Design HD Quiz – Save Results Light hd-quiz-save-results-light allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects HD Quiz – Save Results Light: from n/a through <= 0.5.

5. CVE-2024-22161 WordPress HD Quiz Plugin <= 1.8.11 is vulnerable to Cross Site Scripting (XSS)

   Published 2024-01-31

   Medium·CVSS 4.8 EPSS 0.32%

   Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Harmonic Design HD Quiz allows Stored XSS.This issue affects HD Quiz: from n/a through 1.8.11.

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.