{"schemaVersion":3,"id":"CVE-2023-48631","aliases":["GHSA-prr3-c3m5-p7q2"],"status":"published","duplicateOf":null,"title":null,"description":"@adobe/css-tools versions 4.3.1 and earlier are affected by an Improper Input Validation vulnerability that could result in a denial of service while attempting to parse CSS.","dates":{"published":"2023-12-14T13:09:22.993Z","modified":"2024-08-02T21:37:53.427Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Npm","score":5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L","exploitability":7.9,"impact":2.3,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01111,"percentile":0.65483,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.01111},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01121,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01121,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01121,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01111,"percentile":0.65483}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01111,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01111,"percentile":0.65483}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-20","name":"Improper Input Validation","description":"The product receives input or data, but it does\n        not validate or incorrectly validates that the input has the\n        properties that are required to process the data safely and\n        correctly.","type":"weakness","status":"Stable","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/20.html"},{"id":"CWE-1333","name":"Inefficient Regular Expression Complexity","description":"The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/1333.html"}],"affected":[{"vendor":"adobe","product":"css-tools","name":"css-tools","label":"css-tools","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 4.3.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.3.2","eol":null,"hubHref":"/vendor/adobe/css-tools"},{"vendor":"adobe","product":"not a product","name":"Not a product","label":"not a product","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 4.3.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 4.3.1","eol":null,"hubHref":"/vendor/adobe/not_a_product"},{"vendor":"@adobe","product":"css-tools","name":"@adobe/css-tools","label":"css-tools","ecosystem":"Npm","cpePart":null,"purl":"pkg:npm/@adobe/css-tools","purlType":"npm","versions":[{"text":"< 4.3.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.3.2","eol":null,"hubHref":null}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/adobe/css-tools/security/advisories/GHSA-prr3-c3m5-p7q2","label":"github.com/adobe/css-tools/security/advisories/GHSA-prr3-c3m5-p7q2","hostname":"github.com","tags":["Vendor Advisory","WEB"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-48631","label":"nvd.nist.gov/vuln/detail/CVE-2023-48631","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/adobe/css-tools/issues/211","label":"github.com/adobe/css-tools/issues/211","hostname":"github.com","tags":["WEB"]},{"url":"https://github.com/adobe/css-tools/pull/249","label":"github.com/adobe/css-tools/pull/249","hostname":"github.com","tags":["WEB"]},{"url":"https://github.com/adobe/css-tools/commit/472bef91bde9caab305f3f36231ad0c253581b43","label":"github.com/adobe/css-tools/commit/472bef91bde9caab305f3f36231ad0c253581b43","hostname":"github.com","tags":["WEB"]},{"url":"https://github.com/adobe/css-tools","label":"github.com/adobe/css-tools","hostname":"github.com","tags":["PACKAGE"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2023-12-14T13:09:22.993Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-02T21:37:53.427Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T09:24:38.794Z","stale":false,"partial":false}}