Unrated severityNVD Advisory· Published Dec 4, 2025· Updated Dec 5, 2025
Monkeytype vulnerable to stored XSS in approve quotes page
CVE-2025-66563
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 they're inserted straight into the DOM. If they contain HTML tags, they will be rendered (after some escaping using quotes and textarea tags).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Range: <=25.49.0
- monkeytypegame/monkeytypev5Range: <= 25.49.0
Patches
Vulnerability mechanics
References
2- github.com/monkeytypegame/monkeytype/commit/d6d062a77132ba7d6ba3b482d46ae329d3b8d695mitrex_refsource_MISC
- github.com/monkeytypegame/monkeytype/security/advisories/GHSA-mfjh-9552-8g27mitrex_refsource_CONFIRM
News mentions
0No linked articles in our index yet.