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  4. CVE 2025 59838 monkeytype vulnerable to self xss on loading
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Back to active CVEs
Low · CVSS 2.4CVE-2025-59838

Monkeytype Vulnerable to Self-XSS on loading saved custom textCVE-2025-59838

Answer in brief

CVE-2025-59838 records a Low severity (CVSS 2.4) vulnerability in Monkeytype Vulnerable to Self-XSS on loading saved custom text. The current sources do not mark it as known exploited. The current feed maps monkeytypegame/monkeytype (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 25, 2025Updated Oct 13, 2026Source checked Oct 13, 2026First seen by HOL Oct 13, 2026Material review Oct 13, 2026
Upstream Advisory

Key facts

Risk
Low · CVSS 2.4
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 2.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps monkeytypegame/monkeytype (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
monkeytypegame/monkeytypegeneric<25.44.025.44.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for monkeytypegame/monkeytype.
  2. 2Review the reported fix. Update monkeytypegame/monkeytype to 25.44.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 25, 2025

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 13, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 13, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Koillection through 1.8.4 Stored XSS via Datum File Attachment UploadsAlso CWE-79
  • bbs-go through 4.4.6 Stored XSS via Image Upload Content-TypeAlso CWE-79
  • JumpServer: Ansible Automation Template Rendering Allows Unsafe Lookup Plugin InvocationSame generic ecosystem
  • dataclasses-avroschema allows code injection through fixed-type aliases supplied as a bare stringSame generic ecosystem
  • dataclasses-avroschema enum field defaults can inject statements into generated modulesSame generic ecosystem
  • GPAC AIT Parser ait.c gf_m2ts_decode_ait out-of-bounds writeSame generic ecosystem

Record context

Vulnerability class
XSS
EPSS
Not reported
CWE IDs
CWE-79
Source
CVE List V5
Source checked
Oct 13, 2026
References
4 linked sources
Open source record