---
id: "CVE-2026-48202"
kind: "vulnerability"
aliases: ["CVE-2026-48202"]
title: "Brave popup builder: basic XSS lets injected script run in pages"
severity: "medium"
cvss: 5.3
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["brave-popup-builder", "package", "wordpress"]
not_affected_if: ["plugin-not-installed"]
published_at: "2026-10-29T14:17:56+00:00"
first_seen_at: "2026-10-29T14:25:23+00:00"
updated_at: "2026-10-29T14:26:05+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48202", "first_seen_at": "2026-10-29T14:25:23+00:00"}]
---

# Brave popup builder: basic XSS lets injected script run in pages

The Brave brave-popup-builder plugin does not neutralize script-related HTML tags in a web page, allowing code injection. An attacker who can supply input the plugin renders can run JavaScript in a visitor's browser.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed version of brave-popup-builder in the WordPress plugin list or the plugin's main file header.
- Look for `brave-popup-builder` in the site's plugin directory.

## Fix

- brave-popup-builder: versions through `0.8.8` are affected; the sources do not name a fixed version.

## Timeline

- 2026-10-29T14:25:23+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-48202

## From the sources

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Brave Brave brave-popup-builder allows Code Injection.This issue affects Brave: from n/a through 0.8.8.

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