Known vulnerabilities in Custom CSS Pro

Professional real-time CSS editor for those who want to code CSS.

1Reported vulnerabilities

8.8Highest CVSS score

1.0.8Latest version

7,000+Active installs

What to do now

Update Custom CSS Pro to 1.0.4 or later. 1 of these have a fixed version available. Updating resolves them.

Plugin last updated: May 20, 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-2019-5984	High 8.8	1.0%	1.0.3 and earlier	`1.0.4`	June 24, 2019

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