Hello Bar Popup Builder: Cross-site scripting
Hello Bar Popup Builder is affected by cross-site scripting. Exposure depends on how the affected operation is made reachable by the site. Injected script can execute in the affected site's origin when the vulnerable output is viewed. The published affected range is <= 1.5.1.
- Component
- Hello Bar Popup Builder
- Plugin slug
hellobar- Affected
- <= 1.5.1
- Safe version
> 1.5.1- Published
- Apr 08, 2026
This CVE was published Apr 08, 2026 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update Hello Bar Popup Builder to a release after 1.5.1, or disable and remove it until a fixed version is available.
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 telepathy Hello Bar Popup Builder hellobar allows DOM-Based XSS.This issue affects Hello Bar Popup Builder: from n/a through <= 1.5.1.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L