{"id":"GHSA-p28h-cc7q-c4fg","summary":"css-what vulnerable to ReDoS due to use of insecure regular expression","details":"The package css-what before 2.1.3 is vulnerable to Regular Expression Denial of Service (ReDoS) due to the use of insecure regular expression in the `re_attr` variable of index.js. The exploitation of this vulnerability could be triggered via the parse function.","aliases":["CVE-2022-21222"],"modified":"2025-05-20T21:02:33Z","published":"2022-10-01T00:00:24Z","database_specific":{"cwe_ids":["CWE-1333","CWE-400"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2022-10-04T21:11:32Z","nvd_published_at":"2022-09-30T05:15:00Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-21222"},{"type":"WEB","url":"https://github.com/fb55/css-what/commit/dc510929790da6617e7aa93a616498b22f6a6b72"},{"type":"PACKAGE","url":"https://github.com/fb55/css-what"},{"type":"WEB","url":"https://github.com/fb55/css-what/blob/a38effd5a8f5506d75c7f8f13cbd8c76248a3860/index.js#23L12"},{"type":"WEB","url":"https://github.com/fb55/css-what/blob/a38effd5a8f5506d75c7f8f13cbd8c76248a3860/index.js%23L12"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/03/msg00001.html"},{"type":"WEB","url":"https://security.snyk.io/vuln/SNYK-JS-CSSWHAT-3035488"}],"affected":[{"package":{"name":"css-what","ecosystem":"npm","purl":"pkg:npm/css-what"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.1.3"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/10/GHSA-p28h-cc7q-c4fg/GHSA-p28h-cc7q-c4fg.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:N/I:N/A:H"}]}