CVE-2026-6172: Bold Page Builder stored cross-site scripting in image shortcode

CVE-2026-6172 · Severity: medium · CVSS 6.4 · Published 2026-09-30

The Bold Page Builder WordPress plugin fails to properly sanitize user input in its image shortcode, allowing attackers with contributor-level access to inject malicious scripts. When a site administrator or other user views a page containing the injected code, the attacker's script executes in their browser with their privileges, potentially allowing account takeover or data theft.

Technologies: Bold Page Builder. Vendors: Bold.

Quick answers

Is CVE-2026-6172 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-6172 being exploited in the wild.
How severe is CVE-2026-6172?
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-2026-6172?
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-2026-6172 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-6172?
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

Stored XSS vulnerability in the bt_bb_image shortcode's caption parameter due to insufficient input sanitization and output escaping of user-supplied attributes. An authenticated attacker with Contributor-level access or higher can inject arbitrary JavaScript that persists in the database and executes in the browsers of any user viewing the affected page. A patch is available in versions after 5.7.2.

Affected products

  • Bold Page Builder up to 5.7.2

Timeline

  • 2026-09-30: disclosed

References

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