Live › vulnerability › CVE-2026-116552
The Like Button Rating LikeBtn plugin for WordPress stores the HTTP_CLIENT_IP header without sanitizing it and outputs it unescaped. An unauthenticated attacker can plant JavaScript that runs in the browser of anyone who opens an affected page, including administrators.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-30 18:55 UTC. All times on this page are UTC.
Sites running the LikeBtn plugin at version 2.6.64 or lower where the 'Be GDPR compliant' option is disabled. Exploitation also needs an administrator to act, so sites without the plugin or with the GDPR option enabled are not exposed.
No product ranges from the sources yet.
2.6.64 or lower in the WordPress plugin list.2.6.64 are affected; the sources do not name a fixed version.Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
The Like Button Rating ♥ LikeBtn plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'HTTP_CLIENT_IP (Client-IP header)' parameter in all versions up to, and including, 2.6.64 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires the site administrator to have disabled the default 'Be GDPR compliant' option, which would otherwise hash stored IP values and neutralize the payload. Successful exploitation additionally requires an action by an administrator — the attacker cannot trigger the vulnerability on their own.
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