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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.

PUBLISHED Reserved 2026-06-26 | Published 2026-06-27 | Updated 2026-06-27 | Assigner Wordfence




MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Problem types

CWE-352 Cross-Site Request Forgery (CSRF)

Product status

Default status
unaffected

2.2.0 (semver)
affected

Timeline

2026-06-24:Vendor Notified
2026-06-26:Disclosed

Credits

PRISM finder

References

www.wordfence.com/...-0633-4892-9471-c1a7ee858c93?source=cve

plugins.trac.wordpress.org/...s/2.2.0/includes/functions.php

plugins.trac.wordpress.org/...s/2.2.1/includes/functions.php

plugins.trac.wordpress.org/....2.1/includes/actions-ajax.php

plugins.trac.wordpress.org/....2.1/includes/actions-ajax.php

plugins.trac.wordpress.org/....2.1/includes/actions-ajax.php

plugins.trac.wordpress.org/....2.1/includes/actions-ajax.php

plugins.trac.wordpress.org/....2.1/includes/actions-ajax.php

plugins.trac.wordpress.org/....2.1/includes/actions-ajax.php

plugins.trac.wordpress.org/....2.0/includes/actions-ajax.php

plugins.trac.wordpress.org/....2.0/includes/actions-ajax.php

plugins.trac.wordpress.org/....2.0/includes/actions-ajax.php

plugins.trac.wordpress.org/....2.0/includes/actions-ajax.php

plugins.trac.wordpress.org/....2.0/includes/actions-ajax.php

plugins.trac.wordpress.org/....2.0/includes/actions-ajax.php

plugins.trac.wordpress.org/...s/2.2.2/includes/functions.php

cve.org (CVE-2026-13422)

nvd.nist.gov (CVE-2026-13422)

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