{"id":"CVE-2025-4083","state":"PUBLISHED","title":"Process isolation bypass using \"javascript:\" URI links in cross-origin frames","description":"A process isolation vulnerability in Thunderbird stemmed from improper handling of javascript: URIs, which could allow content to execute in the top-level document's process instead of the intended frame, potentially enabling a sandbox escape. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10.","publishedAt":"2025-04-29T13:13:36.578Z","updatedAt":"2026-07-25T01:15:24.384Z","severity":{"score":9.1,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","source":"CISA-ADP"},"assigner":"mozilla","products":["Mozilla Firefox","Mozilla Thunderbird"],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"115.23","status":"unaffected","lessThanOrEqual":"115.*","versionType":"rpm"},{"version":"128.10","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"138","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"128.10","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"138","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=1958350","https://www.mozilla.org/security/advisories/mfsa2025-28/","https://www.mozilla.org/security/advisories/mfsa2025-29/","https://www.mozilla.org/security/advisories/mfsa2025-30/","https://www.mozilla.org/security/advisories/mfsa2025-31/","https://www.mozilla.org/security/advisories/mfsa2025-32/","https://lists.debian.org/debian-lts-announce/2025/05/msg00024.html"],"weaknesses":["CWE-653"],"ingestedAt":"2026-10-29T20:09:23.771Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/4xxx/CVE-2025-4083.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-4083","state":"PUBLISHED","datePublished":"2025-04-29T13:13:36.578Z","dateUpdated":"2026-07-25T01:15:24.384Z","assignerShortName":"mozilla","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateReserved":"2025-04-29T13:13:35.922Z"},"containers":{"cna":{"title":"Process isolation bypass using \"javascript:\" URI links in cross-origin frames","descriptions":[{"lang":"en","value":"A process isolation vulnerability in Thunderbird stemmed from improper handling of javascript: URIs, which could allow content to execute in the top-level document's process instead of the intended frame, potentially enabling a sandbox escape. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10."}],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"115.23","status":"unaffected","lessThanOrEqual":"115.*","versionType":"rpm"},{"version":"128.10","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"138","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"128.10","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"138","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1958350"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-28/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-29/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-30/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-31/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-32/"}],"providerMetadata":{"shortName":"mozilla","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateUpdated":"2026-04-13T14:27:17.492Z"},"credits":[{"lang":"en","value":"Nika Layzell"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.1,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-04-30T13:43:47.793246Z","id":"CVE-2025-4083","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-653","type":"CWE","lang":"en","description":"CWE-653 Improper Isolation or Compartmentalization"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-25T01:15:24.384Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00024.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T19:58:48.900Z"}}]}}}