Known vulnerabilities in Add Custom Codes – Insert Header, Footer, Custom PHP Snippets, CSS, Javascript

A completely free plugin to add Custom PHP functions, HTML, CSS, Javascript, any other custom codes to your wordpress website.

4Reported vulnerabilities

8.8Highest CVSS score

5.0Latest version

1,000+Active installs

What to do now

Update Add Custom Codes – Insert Header, Footer, Custom PHP Snippets, CSS, Javascript to 5.0 or later. 4 of these have a fixed version available. Updating resolves them.

Plugin last updated: May 22, 2026 / Tested up to WordPress: 7.0.4 / View on wordpress.org

Reported vulnerabilities

Ordered by how urgently they need attention — whether a vulnerability is actually being exploited, and how likely exploitation is, rather than CVSS severity alone.

CVE	Severity	Exploit probability next 30 days	Affected versions	Fixed in	Published
CVE-2025-30975	High 8.8	0.4%	4.80 and earlier	`5.0`	August 14, 2025
CVE-2025-62149	Medium 6.4	0.2%	4.80 and earlier	`5.0`	December 31, 2025
CVE-2025-62108	Medium 4.3	0.2%	4.80 and earlier	`5.0`	December 31, 2025
CVE-2025-62739	Medium 4.3	0.1%	4.80 and earlier	`5.0`	December 5, 2025

Sources: vulnerability records from NVD, exploitation from CISA KEV, exploit probability from EPSS. Affected versions come from CPE ranges or from the reporting CNA.