Live › vulnerability › CVE-2026-109216
The Meta Box WordPress plugin up to and including 5.15.2 does not sanitize or escape the 'profile_background' parameter, so stored values can contain scripts. An authenticated user with subscriber-level access can inject JavaScript that runs in the browser of anyone who views the affected page.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-29 12:24 UTC. All times on this page are UTC.
Sites running Meta Box 5.15.2 or earlier are exposed only if a plugin or theme built on Meta Box lets lower-privileged users set the background field and then displays it without escaping. The sources demonstrate the attack at subscriber level, so the effective required role depends on what the consuming code permits. Sites without such a consumer, or where only administrators can edit that field, are less exposed.
No product ranges from the sources yet.
wp plugin get meta-box --field=versionrwmb_the_value() or format_single_value()5.15.2 (the sources do not name the exact fixed release)Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
The Meta Box – A Framework for Dynamic Websites plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'profile_background[<attacker-chosen key>]' parameter in all versions up to, and including, 5.15.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitability depends on a consuming plugin or theme built on Meta Box that exposes the background field to lower-privileged users and renders stored values via the rwmb_the_value()/format_single_value() pattern; the effective minimum privilege is whatever role that consumer permits, demonstrated at Subscriber level.
This page as .md · .json · in your agent: get_signal("CVE-2026-109216")
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