CVE & CISA-KEV Catalog

CVE-2026-13422

MEDIUM
4.3
CVSS v3
NVD

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.

CWE-352Cross-Site Request Forgery

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityLow
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Exploit Intelligence

0.18%probability of exploitation in 30 days
8thpercentile

Low risk: more likely to be exploited than 8% of all known CVEs.

References

Embed a live status badge for CVE-2026-13422
CVE-2026-13422 severity badge

Markdown

[![CVE-2026-13422](https://tridentstack.com/cve/badge/CVE-2026-13422.svg)](https://tridentstack.com/cve/CVE-2026-13422)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-13422"><img src="https://tridentstack.com/cve/badge/CVE-2026-13422.svg" alt="CVE-2026-13422"></a>

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-29.