{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-66563 exists.","fix":"No fix has been published for CVE-2025-66563 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-66563 is a high-severity cross-site scripting vulnerability in monkeytypegame monkeytype, published on 4 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2025-66563 and fix it if it is affected.\n\nWhat it is: CVE-2025-66563 is a high-severity cross-site scripting vulnerability in monkeytypegame monkeytype, published on 4 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-66563 exists.\n\nAffected product: monkeytypegame monkeytype. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2025-66563/ (Markdown: https://insights.sbomify.com/CVE-2025-66563/index.md)","id":"CVE-2025-66563","markdown":"https://insights.sbomify.com/CVE-2025-66563/index.md","name":"CVE-2025-66563","record":{"aliases":["GHSA-mfjh-9552-8g27"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"typing test web app","requires_auth":"none","summary":"Attackers can execute malicious JavaScript on other users' browsers by submitting quotes containing HTML tags in the Monkeytype typing test application.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"monkeytype","vendor":"monkeytype"}],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Monkeytype is a minimalistic and customizable typing test. In 25.49.0 and earlier, there is improper handling of user input which allows an attacker to execute malicious javascript on anyone viewing a malicious quote submission. quote.text and quote.source are user input, and they're inserted straight into the DOM. If they contain HTML tags, they will be rendered (after some escaping using quotes and textarea tags).","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Monkeytype vulnerable to stored XSS in approve quotes page","id":"CVE-2025-66563","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2025"},"n_packages":0,"n_references":2,"next":{"headline":"Sigstore Timestamp Authority allocates excessive memory during request parsing","id":"CVE-2025-66564"},"packages":[],"prev":{"headline":"TUUI vulnerable to Remote Code Execution (RCE) via XSS in Markdown ECharts Rendering","id":"CVE-2025-66562"},"products":["monkeytype"],"published":"2025-12-04","related":[{"cvss_score":8.4,"headline":"Code injection in monkeytype","id":"CVE-2024-41127","kev_date_added":null,"published":"2024-08-02"},{"cvss_score":2.4,"headline":"Monkeytype Vulnerable to Self-XSS on loading saved custom text","id":"CVE-2025-59838","kev_date_added":null,"published":"2025-09-25"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-12-05","vendors":["monkeytypegame"]},"summary":"Attackers can execute malicious JavaScript on other users' browsers by submitting quotes containing HTML tags in the Monkeytype typing test application.","url":"https://insights.sbomify.com/CVE-2025-66563/"}