SQL Chart Builder <= 3.0.6 — Authenticated (Subscriber+) Stored Cross-Site Scripting via SQL Chart Label (X-axis) via Stored User Field

Am I affected?

• Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under SQL Chart Builder.
• No admin access? Run a passive check of your site. It reads public files only.

What to do

1. Update to version 3.0.7, or a newer patched version
2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
3. Watch SQL Chart Builder to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to JEON GYEOMSEONG.

The SQL Chart Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'X-axis column value ($value->$xarg_s from $wpdb->get_results())' parameter in all versions up to, and including, 3.0.6 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. This requires an administrator to have published a chart whose SQL query returns a column controllable by a lower-privileged user, such as wp_users.display_name, which a Subscriber can populate with a payload via the standard WordPress profile page at /wp-admin/profile.php.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

• Advisorywordfence.com

Related CVEs

Timeline

1. Oct 15, 2026

   CVE published

   Severity medium, CVSS 6.4

2. Nov 13, 2026

   Record last updated