Is crayon-syntax-highlighter (WordPress plugin) vulnerable?

WordPress crayon-syntax-highlighter 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-2016-10893	The crayon-syntax-highlighter plugin before 2.8.4 for WordPress has multiple XSS issues via AJAX requests.	medium	6.1	`<2.8.4`	`2.8.4`
CVE-2023-4893	The Crayon Syntax Highlighter plugin for WordPress is vulnerable to Server Side Request Forgery via the 'crayon' shortcode in versions up to	medium	6.4	`<=2.8.4`	–

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.

# 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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