Monkeytype Vulnerable to Self-XSS on loading saved custom text
Priority MEDIUM 46CWE-79Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00252 16th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed monkeytype (monkeytypegame): 25.44.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| monkeytypegame | monkeytype | before 25.44.0 | 25.44.0 | Patch available | CNA |
- monkeytype Vendormonkeytypegame Affected before 25.44.0 Fixed in 25.44.0 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:monkeytype:monkeytype:*:*:*:*:*:*:*:* | before 25.44.0 | Vulnerable | monkeytypegame |
- cpe:2.3:a:monkeytype:monkeytype:*:*:*:*:*:*:*:* Versions before 25.44.0 Vulnerable ·monkeytypegame
Remediation
- Fix · CNA monkeytype (monkeytypegame) Fixed in 25.44.0
Timeline
- 2026-10-02 Threatist record created from CVE-2025-59838
- 2026-10-13 1 new reference · CNA
References
Patch 2
More monkeytypegame Monkeytype vulnerabilities
- TI-2024-27479 Injection in monkeytypegame monkeytype CVSS 3.1CRITICAL 9.6
- TI-2025-40974 Monkeytype vulnerable to stored XSS in approve quotes page CVSS 4.0HIGH 7.1
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences