CVE-2025-59838

MEDIUM
Published Sep 25, 2025 Modified Oct 28, 2025 CWE-79

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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CVSS v3.1 Score

5.4
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor Product
monkeytype monkeytype

References

Frequently Asked Questions

What is CVE-2025-59838? +
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. It has a CVSS v3.1 base score of 5.4 (MEDIUM).
How severe is CVE-2025-59838? +
CVE-2025-59838 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2025-59838? +
CVE-2025-59838 affects products from monkeytype, specifically: monkeytype. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-59838? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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