WP Allowed Hosts, CVE-2026-0734

CVE, Research URL: CVE-2026-0734
Home page URL: Security reports for WP Allowed Hosts
Application: WP Allowed Hosts
Published on: Jan 14, 2026
Research Description: The WP Allowed Hosts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'allowed-hosts' parameter in all versions up to, and including, 1.0.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access 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 1.0.8.
Status: vulnerable