CVE-2026-77115
Brave Popup Builder < 0.8.6 - Unauthenticated Reflected XSS via UTM Parameters
CVSS Score
7.1
EPSS Score
0.2%
EPSS Percentile
11th
Brave Popup Builder (brave-popup-builder) up to version 0.8.5 reflects UTM query parameters into popup form HTML without escaping them.
| Vendor | unknown |
| Product | brave |
| Published | Aug 23, 2026 |
| Last Updated | Aug 23, 2026 |
Stay Ahead of the Next One
Get instant alerts for unknown brave
Be the first to know when new high vulnerabilities affecting unknown brave are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Unknown / Brave
0 < 0.8.6
References
Credits
Huseyin Mertoglu WPScan