CVE-2025-59838

Monkeytype Vulnerable to Self-XSS on loading saved custom text

Published Sep 25, 2025 CVSS 4.0 · 2.4 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-31098 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 patched via commit f025b12.
History
Type Values Removed Values Added
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 patched via commit f025b12. 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.
References
Type Values Removed Values Added
CPEs cpe:2.3:a:monkeytype:monkeytype:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

Type Values Removed Values Added
First Time appeared Monkeytype
Monkeytype monkeytype
Vendors & Products Monkeytype
Monkeytype monkeytype
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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 patched via commit f025b12.
Title Monkeytype Vulnerable to Self-XSS on loading saved custom text
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 2.4, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Oct 13, 2026, 3:24 PM
Reserved
Sep 22, 2025, 2:34 PM
Status
Analyzed
Published
Sep 25, 2025, 3:16 PM
Modified
Oct 14, 2026, 8:15 PM