BlockStrap Page Builder - Bootstrap Blocks: Reflected cross-site scripting
The supplied vector requires no attacker account. Attacker-controlled request input can be reflected into browser output without sufficient neutralization. When a victim interacts with the crafted request or response, script can execute under the site's origin. The export does not identify the endpoint, parameter, rendering function, output context or victim role. Victim interaction is required by the vector. The vector reports limited confidentiality impact, limited integrity impact, limited availability impact. Affected versions: <= 0.1.58. The authoritative export identifies 0.1.59 as fixed for this CVE.
- Component
- BlockStrap Page Builder - Bootstrap Blocks
- Plugin slug
blockstrap-page-builder-blocks- Affected
- <= 0.1.58
- Safe version
0.1.59- Published
- Oct 09, 2026
This CVE was published Oct 09, 2026 and is one of 2 known issues for this plugin.
Update, patch or deactivate.
Update to 0.1.59 or a later supported release. Application-level remediation: Validate request input and escape each value for its final HTML, attribute, URL or script context before reflecting it into browser output.
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
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Stiofan BlockStrap Page Builder - Bootstrap Blocks blockstrap-page-builder-blocks allows Reflected XSS.This issue affects BlockStrap Page Builder - Bootstrap Blocks: from n/a through 0.1.58.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L