Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2025-66563

Monkeytype is a minimalistic and customizable typing test. In 25.49.0 and earlier, there is improper handling of user input which allows an attacker to execute malicious javascript on anyone viewing a malicious quote submission. quote.text and quote.source are user input, and they're inserted straight into the DOM. If they contain HTML tags, they will be rendered (after some escaping using quotes and textarea tags).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 19.5%
CVSS Severity
CVSS v3 Score 6.1
Products affected by CVE-2025-66563


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