CVE-2019-5422: Buttle Project Buttle

Medium severity, CVSS 6.1. EPSS: 1.2% chance of exploitation in the next 30 days.

XSS in buttle npm package version 0.2.0 causes execution of attacker-provided code in the victim's browser when an attacker creates an arbitrary file on the server.

Affected products

• Buttle Project Buttle: version 0.2.0 only

Published 2019-04-03. Last modified 2026-06-17.