{"schemaVersion":3,"id":"USN-6456-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"firefox vulnerabilities\n\nMultiple security issues were discovered in Firefox. If a user were\ntricked into opening a specially crafted website, an attacker could\npotentially exploit these to cause a denial of service, obtain sensitive\ninformation across domains, or execute arbitrary code. (CVE-2023-5722,\nCVE-2023-5724, CVE-2023-5728, CVE-2023-5729, CVE-2023-5730, CVE-2023-5731)\n\nKelsey Gilbert discovered that Firefox did not properly manage certain\nbrowser prompts and dialogs due to an insufficient activation-delay. An\nattacker could potentially exploit this issue to perform clickjacking.\n(CVE-2023-5721)\n\nDaniel Veditz discovered that Firefox did not properly validate a cookie\ncontaining invalid characters. An attacker could potentially exploit this\nissue to cause a denial of service. (CVE-2023-5723)\n\nShaheen Fazim discovered that Firefox did not properly validate the URLs\nopen by installed WebExtension. An attacker could potentially exploit this\nissue to obtain sensitive information. (CVE-2023-5725)","dates":{"published":"2023-10-30T03:32:45.000Z","modified":"2026-04-22T10:41:32.344Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"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":[],"affected":[{"vendor":"ubuntu","product":"firefox","name":"firefox","label":"firefox","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/firefox","purlType":"deb","versions":[{"text":"< 119.0+build2-0ubuntu0.20.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 119.0+build2-0ubuntu0.20.04.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-6456-1","label":"ubuntu.com/security/notices/USN-6456-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-5721","label":"ubuntu.com/security/CVE-2023-5721","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-5722","label":"ubuntu.com/security/CVE-2023-5722","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-5723","label":"ubuntu.com/security/CVE-2023-5723","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-5724","label":"ubuntu.com/security/CVE-2023-5724","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-5725","label":"ubuntu.com/security/CVE-2023-5725","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-5728","label":"ubuntu.com/security/CVE-2023-5728","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-5729","label":"ubuntu.com/security/CVE-2023-5729","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-5730","label":"ubuntu.com/security/CVE-2023-5730","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-5731","label":"ubuntu.com/security/CVE-2023-5731","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2023-5721","CVE-2023-5722","CVE-2023-5723","CVE-2023-5724","CVE-2023-5725","CVE-2023-5728","CVE-2023-5729","CVE-2023-5730","CVE-2023-5731"],"downstream":[],"duplicates":[],"related":["CVE-2023-5721","CVE-2023-5722","CVE-2023-5723","CVE-2023-5724","CVE-2023-5725","CVE-2023-5728","CVE-2023-5729","CVE-2023-5730","CVE-2023-5731"]},"timeline":[{"kind":"published","date":"2023-10-30T03:32:45.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T10:41:32.344Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T11:22:14.323Z","stale":false,"partial":false}}