Is n5-upload-form (WordPress plugin) vulnerable?

WordPress n5-upload-form has 1 known advisory in the phpwarden feed. Feed 2026.10.29.4, updated 2026-10-29.

1advisories
1critical
0on CISA KEV
1no fix recorded
CVETitleSeverityCVSSAffectedFixed in
CVE-2021-24223The N5 Upload Form WordPress plugin through 1.0 suffers from an arbitrary file upload issue in page where a Form from the plugin is embed, acritical9.8<=1.0–

Am I affected?

Find out in one command. phpwarden checks your WordPress install against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden wordpress /var/www/html

# or, without Composer
pipx install phpwarden   &&   phpwarden wordpress /var/www/html

Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

Install docs   How findings are ranked
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