CVE-2026-77115
Brave Popup Builder < 0.8.6 - Unauthenticated Reflected XSS via UTM Parameters
- State
- Published
- Severity
- 7.1 High
- Published
- Aug 23, 2026
- Updated
- Aug 23, 2026
- Reserved
- Aug 20, 2026
Description
Brave Popup Builder (brave-popup-builder) up to version 0.8.5 reflects UTM query parameters into popup form HTML without escaping them.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.1 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L | CISA-ADP |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
BraveUnknown |
|
References
- https://wpscan.com/vulnerability/d4a760c0-8e71-4261-a08b-9b6a296c631a/exploitvdb-entrytechnical-description
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