vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2026-77115

Brave Popup Builder < 0.8.6 - Unauthenticated Reflected XSS via UTM Parameters

HIGH
7.1
CVSS Score
Published: August 23, 2026 at 06:00 AM UTC
Updated: October 12, 2026 at 04:10 PM UTC
1 product affected across 1 vendorBrave Popup Builder

Using Brave by Unknown?

Get instant alerts when new vulnerabilities affect Brave - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH7.1
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Brave Popup Builder (brave-popup-builder) up to version 0.8.5 reflects UTM query parameters into popup form HTML without escaping them.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Brave Popup Builder· Bravepopupwordpress-plugin
90%
0 ≤ v < 0.8.60
Affected range stops below 0.8.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitVDB EntryTechnical Description
Source: cverecord
https://wpscan.com/vulnerability/d4a760c0-8e71-4261-a08b-9b6a296c631a/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card