Known vulnerabilities in HTTP Headers

HTTP Headers adds CORS & security HTTP headers to your website.

7Reported vulnerabilities

7.2Highest CVSS score

1.19.5Latest version

50,000+Active installs

What to do now

Update HTTP Headers to 1.19.5 or later. 5 of these have a fixed version available. Updating resolves them.

Plugin last updated: April 27, 2026 / Tested up to WordPress: 6.9.7 / 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-2023-1208	High 7.2	1.7%	Before 1.18.11	`1.18.11`	July 10, 2023
CVE-2023-1207	High 7.2	0.9%	Before 1.18.8	`1.18.8`	May 15, 2023
CVE-2026-4132	High 7.2	1.0%	0 to 1.19.2 (inclusive)	—	April 22, 2026
CVE-2026-2717	Medium 5.5	0.5%	0 to 1.19.2 (inclusive)	—	April 22, 2026
CVE-2023-37978	Medium 5.5	0.4%	1.18.11 and earlier	`1.19.0`	July 13, 2023
CVE-2026-1379	Medium 4.4	0.3%	0 to 1.19.2 (inclusive)	`1.19.5`	April 22, 2026
CVE-2023-37874	Medium 4.4	0.4%	1.18.11 and earlier	`1.19.0`	July 10, 2023

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