EUVD-2026-20340

| CVE-2026-39666 MEDIUM
2026-04-08 Patchstack GHSA-qcfx-2rwj-377x
6.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

3
Analysis Generated
Apr 08, 2026 - 08:45 vuln.today
EUVD ID Assigned
Apr 08, 2026 - 08:45 euvd
EUVD-2026-20340
CVE Published
Apr 08, 2026 - 08:30 nvd
MEDIUM 6.5

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.

Analysis

DOM-Based XSS in Hello Bar Popup Builder WordPress plugin versions up to 1.5.1 allows authenticated attackers with low privileges to inject arbitrary scripts that execute in users' browsers with the affected site's context. The vulnerability requires user interaction (UI:R) and affects confidentiality, integrity, and availability with limited scope. …

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Priority Score

33
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +32
POC: 0

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EUVD-2026-20340 vulnerability details – vuln.today

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