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Low 2.4Published Sep 25, 2025
CVE-2025-59838Monkeytype Vulnerable to Self-XSS on loading saved custom text
Updated under an hour ago ()
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It affects monkeytypegame monkeytype and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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.
- CVSS
- 2.4 LOW (v4.0, CNA)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
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Oct 13, 2026
- First seen by InfoSec Signals
- Oct 11, 2026
Affected products
monkeytypegame monkeytype monkeytypegame:monkeytype (from the name) | before 25.44.0 | CNA record |
monkeytype monkeytype monkeytype:monkeytype | before 25.44.0 | NVD |
References
- https://github.com/monkeytypegame/monkeytype/security/advisories/GHSA-j4xx-fww5-774wx-refsource-confirm, exploit, vendor-advisory
- https://github.com/monkeytypegame/monkeytype/commit/42f6a16c6255d66cbb2be279131454866d98f2c9x-refsource-misc, patch
- https://github.com/monkeytypegame/monkeytype/commit/f025b121cbe437e29de432b4aa72e0de22c755b7x-refsource-misc, patch
- https://github.com/monkeytypegame/monkeytype/releases/tag/v25.44.0x-refsource-misc, release-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.