{"id":"GHSA-g3vf-47fv-8f3c","summary":"MrSwitch hello.js vulnerable to prototype pollution","details":"A prototype pollution vulnerability in MrSwitch hello.js prior to version 1.18.8 allows remote attackers to execute arbitrary code via `hello.utils.extend` function.","aliases":["CVE-2021-26505"],"modified":"2023-11-08T04:05:21.032993Z","published":"2023-08-11T15:30:46Z","database_specific":{"cwe_ids":["CWE-1321"],"severity":"CRITICAL","github_reviewed":true,"github_reviewed_at":"2023-08-11T22:08:41Z","nvd_published_at":"2023-08-11T14:15:12Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26505"},{"type":"WEB","url":"https://github.com/MrSwitch/hello.js/issues/634"},{"type":"WEB","url":"https://github.com/MrSwitch/hello.js/commit/7ab50aeff2d41991f08d4ad6c0481125eea8f6b7"},{"type":"PACKAGE","url":"https://github.com/MrSwitch/hello.js"}],"affected":[{"package":{"name":"hellojs","ecosystem":"npm","purl":"pkg:npm/hellojs"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.18.8"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/08/GHSA-g3vf-47fv-8f3c/GHSA-g3vf-47fv-8f3c.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}