Known vulnerabilities in Cloudflare

All of Cloudflare’s performance and security benefits in a simple one-click install.

1Reported vulnerabilities

7.1Highest CVSS score

4.14.4Latest version

200,000+Active installs

What to do now

Update Cloudflare to 1.3.21 or later. 1 of these have a fixed version available. Updating resolves them.

Plugin last updated: July 13, 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
WF-b8d63789-16b3-443b-8dcb-67b1e5e25d20	High 7.1	—	Before 1.3.21	`1.3.21`	March 28, 2016

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