Live › vulnerability › CVE-2026-109998
Go to dashboardThe Mang Board WordPress plugin up to and including 2.4.3 does not sanitize the 'content' parameter, and its public AJAX endpoint wp_ajax_nopriv_mb_template returns that content as text/html. An unauthenticated attacker can store script that runs in the browser of any user who opens the injected page.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.
Sites running the Mang Board WordPress plugin version 2.4.3 or earlier are exposed, because its public AJAX endpoint accepts content without login or nonce checks. Sites that do not have the plugin installed or active can skip it.
No product ranges from the sources yet.
wp plugin get mang-board --field=version (unknown if the plugin slug differs)mb_template AJAX action in the plugin code with grep -r "mb_template" wp-content/plugins/2.4.3 (the first fixed version is unknown from the sources)Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
The Mang Board plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'content' parameter in all versions up to, and including, 2.4.3 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. This is exploitable because the wp_ajax_nopriv_mb_template endpoint is publicly accessible without authentication, nonce verification is not enforced for the content_reply mode, and admin-ajax.php responds with Content-Type: text/html, causing browsers to execute injected tags embedded in the JSON response body.
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