Bold Page Builder vulnerability

The Bold Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's bt_bb_accordion_item shortcode in all versions up to, and including, 5.6.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Published 7 Feb 2026Updated 15 Sep 20263 sources
CVSS 6.4

What happened

The Bold Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's bt_bb_accordion_item shortcode in all versions up to, and including, 5.6.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected versions

Bold Page Builder: 0 through 5.6.1 (semver) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.