CVE-2026-109216

The record

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.

Affected packages

Related vulnerabilities

• CVE-2026-62990 Shopper is a Headless e-commerce Admin Panel. CWE-79
• CVE-2026-117645 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')… CWE-79
• CVE-2026-94175 Unauthenticated Cross Site Scripting (XSS) in All In One Login <= 2.4.1 versions. CWE-79
• CVE-2026-7004 WIT SynApps Runtime through 1.4.11 contains a pre-authentication reflected cross-site… CWE-79
• CVE-2026-54855 Unauthenticated Cross Site Scripting (XSS) in Profile Builder <= 4.0.5 versions. CWE-79
• CVE-2026-48201 Unauthenticated Cross Site Scripting (XSS) in Fast Velocity Minify <= 3.5.7 versions. CWE-79
• CVE-2026-39739 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')… CWE-79
• CVE-2026-39786 Unauthenticated Cross Site Scripting (XSS) in BA Book Everything <= 1.8.33 versions. CWE-79