Bold Page Builder permits Contributor-level stored XSS through shortcode attributes
Bold Page Builder before 5.9.8 outputs several Contributor-controlled shortcode attributes into HTML attributes without adequate sanitization and escaping. A Contributor or higher can store script that executes when another user views the affected page.
- Component
- Bold Page Builder
- Plugin slug
bold-page-builder- Affected
- < 5.9.8
- Safe version
5.9.8- Published
- Sep 05, 2026
This CVE was published Sep 05, 2026 and is one of 40 known issues for this plugin.
Update, patch or deactivate.
Update to Bold Page Builder 5.9.8 or later, remove malicious shortcode attributes, and invalidate privileged sessions if affected pages were viewed.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Bold Page Builder WordPress plugin before 5.9.8 does not sanitise and escape several shortcode attributes before outputting them in HTML attributes, allowing users with the Contributor role and above to inject arbitrary web scripts that execute when a user views the affected page.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H