Is CVE-2026-6173 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-6173 being exploited in the wild.

How severe is CVE-2026-6173?

Medium severity, with a CVSS score of 6.4, published 30 September 2026.

Is there a fix for CVE-2026-6173?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-6173 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-6173?

Check whether you run Bold Page Builder at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-6173: Bold Page Builder stored XSS in bt_bb_section shortcode

CVE-2026-6173 · Severity: medium · CVSS 6.4 · Published 2026-09-30

The Bold Page Builder plugin for WordPress allows authenticated users with Contributor-level or higher permissions to inject malicious scripts into page content through the background_image parameter. When other users view an affected page, the injected scripts execute in their browsers, potentially allowing account compromise, session hijacking, or redirection to malicious sites.

Technologies: Bold Page Builder. Vendors: Bold.

Quick answers

Is CVE-2026-6173 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-6173 being exploited in the wild.
How severe is CVE-2026-6173?: Medium severity, with a CVSS score of 6.4, published 30 September 2026.
Which products and versions are affected?: Bold Page Builder up to 5.7.2.
Is there a fix for CVE-2026-6173?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-6173 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-6173?: Check whether you run Bold Page Builder at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a stored cross-site scripting (XSS) flaw in the bt_bb_section shortcode caused by insufficient input sanitization and output escaping of the background_image attribute. An authenticated attacker with Contributor access or above can inject arbitrary JavaScript that persists in the page and executes for all subsequent viewers. The vulnerability affects all versions through 5.7.2.

Affected products

Bold Page Builder up to 5.7.2

Timeline

2026-09-30: disclosed

References

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