Read the docs
TI-2024-12425 Aliases CVE-2024-13383GHSA-r5wg-fxw7-6v36

HD Quiz < 2.0.0 - Editor+ Stored XSS

Priority MEDIUM 55CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

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).

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00326 25th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed HD Quiz (Unknown): 2.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownHD Quizbefore 2.0.02.0.0Patch availableCNA
  • HD Quiz VendorUnknown Affected before 2.0.0 Fixed in 2.0.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:harmonicdesign:hd_quiz:*:*:*:*:*:wordpress:*:*before 2.0.0VulnerableHarmonic Design
  • cpe:2.3:a:harmonicdesign:hd_quiz:*:*:*:*:*:wordpress:*:* Versions before 2.0.0 Vulnerable ·Harmonic Design

Remediation

  • Fix · CNA HD Quiz (Unknown) Fixed in 2.0.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-13383
  2. 2026-10-03 Alias added: GHSA-r5wg-fxw7-6v36

References

  • TI-2024-14762 WordPress HD Quiz Plugin <= 1.8.11 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1MEDIUM 5.9
  • TI-2021-06856 HD Quiz < 1.8.4 - Authenticated Stored XSS CVSS 3.1MEDIUM 5.4

Sources