Is sidebar-adder (WordPress plugin) vulnerable?

WordPress sidebar-adder has 1 known advisory in the phpwarden feed. Feed 2026.10.29.1, updated 2026-10-28.

1advisories

0critical

0on CISA KEV

1no fix recorded

CVE	Title	Severity	CVSS	Affected	Fixed in
CVE-2021-34666	The Add Sidebar WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the add parameter in the ~/wp_sidebarMenu.php file whic	medium	6.1	`<=2.0.0`	–

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.

# 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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