Is calendar (WordPress plugin) vulnerable?

WordPress calendar has 2 known advisories in the phpwarden feed. Feed 2026.10.29.1, updated 2026-10-28.

2advisories

0critical

0on CISA KEV

1no fix recorded

CVE	Title	Severity	CVSS	Affected	Fixed in
CVE-2013-2698	Cross-site request forgery (CSRF) vulnerability in the Calendar plugin before 1.3.3 for WordPress allows remote attackers to hijack the auth	medium	6.8	`<=1.3.2`	–
CVE-2018-18872	The Kieran O'Shea Calendar plugin before 1.3.11 for WordPress has Stored XSS via the event_title parameter in a wp-admin/admin.php?page=cale	medium	5.4	`<1.3.11`	`1.3.11`

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.

# one-time install
pip install phpwarden

# then
phpwarden wordpress /var/www/html

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

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