Is registrations-for-the-events-calendar (WordPress plugin) vulnerable?

WordPress registrations-for-the-events-calendar has 5 known advisories in the phpwarden feed. Feed 2026.10.29.4, updated 2026-10-29.

5advisories
2critical
0on CISA KEV
1no fix recorded
CVETitleSeverityCVSSAffectedFixed in
CVE-2021-24943The Registrations for the Events Calendar WordPress plugin before 2.7.6 does not sanitise and escape the event_id in the rtec_send_unregistecritical9.8<2.7.62.7.6
CVE-2021-24876The Registrations for the Events Calendar WordPress plugin before 2.7.5 does not escape the v parameter before outputting it back in an attrmedium6.1<2.7.52.7.5
CVE-2021-25083The Registrations for the Events Calendar WordPress plugin before 2.7.10 does not escape the qtype parameter before outputting it back in anmedium6.1<=2.7.10–
CVE-2024-7982The Registrations for the Events Calendar WordPress plugin before 2.12.4 does not sanitise and escape some parameters when accepting event critical9.6<2.12.42.12.4
CVE-2024-10703The Registrations for the Events Calendar WordPress plugin before 2.13.4 does not sanitise and escape some of its settings, which could allmedium6.1<2.13.42.13.4

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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