CSRF in Harmonic_design Hd Quiz
CVE-2026-13422
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 at…
Vulnerability class: CSRF (Cross-Site Request Forgery)
EPSS: 0.002 (7.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
Affected products
- Harmonic_design Hd Quiz — versions 2.2.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-13422?
- CVE-2026-13422 is a medium-severity vulnerability in Harmonic_design Hd Quiz, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2026-06-27.
- How severe is CVE-2026-13422?
- Medium severity. CVSS v3 base score is 4.3 out of 10.