{"id":"CVE-2025-59838","aliases":["EUVD-2025-31098","GHSA-j4xx-fww5-774w"],"status":"published","title":"Monkeytype Vulnerable to Self-XSS on loading saved custom text","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.","severity":{"version":"4.0","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","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00252,"percentile":0.16824,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2025-09-25T14:52:16Z","modified":"2026-10-28T02:30:23Z","products":[{"vendor":"monkeytype","product":"monkeytype"},{"vendor":"monkeytypegame","product":"monkeytype"}],"references":[{"url":"https://github.com/monkeytypegame/monkeytype/security/advisories/GHSA-j4xx-fww5-774w","tags":["x_refsource_CONFIRM","exploit","Exploit","Vendor Advisory","advisory"]},{"url":"https://github.com/monkeytypegame/monkeytype/commit/42f6a16c6255d66cbb2be279131454866d98f2c9","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/monkeytypegame/monkeytype/commit/f025b121cbe437e29de432b4aa72e0de22c755b7","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/monkeytypegame/monkeytype/releases/tag/v25.44.0","tags":["x_refsource_MISC","Release Notes","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59838.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-59838","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-59838","title":"Monkeytype Vulnerable to Self-XSS on loading saved custom text","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.","status":"published","published":"2025-09-25T14:52:16.612Z","modified":"2026-10-13T15:24:20.935Z","cvss":[{"version":"4.0","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","level":"low","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:47.812946Z"}],"euvd":[{"id":"EUVD-2025-31098","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.","status":"published","published":"2025-09-25T14:52:16Z","modified":"2026-10-13T15:24:20Z","cvss":[{"version":"4.0","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","level":"low"}],"updated_at":"2026-11-02T17:27:20.397021Z"}],"nvd":[{"id":"CVE-2025-59838","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.","status":"published","published":"2025-09-25T15:16:14.39Z","modified":"2026-10-14T20:15:18.63Z","cvss":[{"version":"4.0","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:11:32.559087Z"}],"osv":[{"id":"CVE-2025-59838","title":"Monkeytype Vulnerable to Self-XSS on loading saved custom text","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.","status":"published","published":"2025-09-25T14:52:16.612Z","modified":"2026-10-28T02:30:23.38387464Z","cvss":[{"version":"4.0","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","level":"low"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:51.516975Z"}]}}