CVE-2025-59838
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-25

Last updated on: 2025-10-28

Assigner: GitHub, Inc.

Description
Monkeytype is a minimalistic and customizable typing test. In versions 25.36.0 and prior, improper handling of user input when loading a saved custom text results in XSS. This issue has been fixed in version 25.44.0.
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Meta Information
Published
2025-09-25
Last Modified
2025-10-28
Generated
2026-06-16
AI Q&A
2025-09-25
EPSS Evaluated
2026-06-15
NVD
CVE-2025-59838
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
monkeytype monkeytype to 25.36.0 (inc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

This vulnerability in Monkeytype versions 25.36.0 and prior is a cross-site scripting (XSS) issue caused by improper handling of user input when loading a saved custom text. This means that malicious scripts could be injected and executed in the context of the application.

Impact Analysis

The XSS vulnerability could allow an attacker to execute malicious scripts in your browser when using Monkeytype, potentially leading to unauthorized actions, data theft, or session hijacking within the application.

Mitigation Strategies

Update Monkeytype to a version later than 25.36.0 where the issue has been patched (commit f025b12). Avoid loading saved custom texts from untrusted sources until the update is applied.

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