Low
Monkeytype Vulnerable to Self-XSS on loading saved custom text
Type: advisorySources: OSV
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-59838
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 20:02 UTC · Revision 1
Source evidence
Monkeytype Vulnerable to Self-XSS on loading saved custom text
core-osv · Original sourcePublished 25 Sept 2025, 14:52 UTC
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.
osv:CVE-2025-59838
Complete source record
{
"id": "5ca2daf27259423cdbffe2ef9a3c8ead010b646c570af4f5a3b050fa71342d12",
"url": "https://osv.dev/vulnerability/CVE-2025-59838",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Monkeytype Vulnerable to Self-XSS on loading saved custom text",
"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.",
"evidence": "osv:CVE-2025-59838",
"products": [],
"severity": "low",
"structured": {
"id": "CVE-2025-59838",
"aliases": [
"CVE-2025-59838",
"GHSA-j4xx-fww5-774w"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "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"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/monkeytypegame/monkeytype",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "b9c4e4616ea11615ab1db1bc16f7708111cc2b33"
},
{
"fixed": "42f6a16c6255d66cbb2be279131454866d98f2c9"
},
{
"fixed": "f025b121cbe437e29de432b4aa72e0de22c755b7"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:monkeytype:monkeytype:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "25.44.0"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "42f6a16c6255d66cbb2be279131454866d98f2c9"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "f025b121cbe437e29de432b4aa72e0de22c755b7"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "b9c4e4616ea11615ab1db1bc16f7708111cc2b33"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v25.44.0"
}
]
}
}
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-59838.json"
}
}
],
"modified": "2026-10-28T02:30:23.383874640Z",
"provider": "osv",
"references": [
"https://github.com/monkeytypegame/monkeytype/releases/tag/v25.44.0",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59838.json",
"https://github.com/monkeytypegame/monkeytype/security/advisories/GHSA-j4xx-fww5-774w",
"https://nvd.nist.gov/vuln/detail/CVE-2025-59838",
"https://github.com/monkeytypegame/monkeytype/commit/42f6a16c6255d66cbb2be279131454866d98f2c9",
"https://github.com/monkeytypegame/monkeytype/commit/f025b121cbe437e29de432b4aa72e0de22c755b7"
],
"provider_metadata": {
"cwe_ids": [
"CWE-79"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59838.json"
}
},
"related_cves": [
{
"value": "CVE-2025-59838",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 489475,
"published_at": "2025-09-25T14:52:16.612+00:00"
}