{"cve":"CVE-2026-13422","nvd":{"published":"2026-06-27T02:16:29.237","modified":"2026-06-29T18:40:23.203","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","score":4.3},"cwes":["CWE-352"],"references":["https://plugins.trac.wordpress.org/browser/hd-quiz/tags/2.2.0/includes/actions-ajax.php#L155","https://plugins.trac.wordpress.org/browser/hd-quiz/tags/2.2.0/includes/actions-ajax.php#L179","https://plugins.trac.wordpress.org/browser/hd-quiz/tags/2.2.0/includes/actions-ajax.php#L53","https://plugins.trac.wordpress.org/browser/hd-quiz/tags/2.2.0/includes/actions-ajax.php#L68","https://plugins.trac.wordpress.org/browser/hd-quiz/tags/2.2.0/includes/actions-ajax.php#L7"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:41:17.107060303+00:00"},"epss":{"cve":"CVE-2026-13422","score":0.00261,"percentile":0.17894,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}