HTTP Headers, CVE-2026-1379

CVE, Research URL: CVE-2026-1379
Home page URL: Security reports for HTTP Headers
Application: HTTP Headers
Published on: Apr 22, 2026
Research Description: The HTTP Headers plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.19.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Affected versions: max 1.19.2.
Status: vulnerable