Security Advisory

CVE-2025-66563

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-12-04 22:34:10

Last updated 2025-12-05 14:59:45

Assigner GitHub_M

State PUBLISHED

Description

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 theyre inserted straight into the DOM. If they contain HTML tags, they will be rendered (after some escaping using quotes and textarea tags).

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