{"id":"CVE-2026-6762","state":"PUBLISHED","title":"Spoofing issue in the DOM: Core & HTML component","description":"Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.","publishedAt":"2026-04-21T12:40:56.838Z","updatedAt":"2026-05-26T18:40:29.784Z","severity":{"score":6.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","source":"CISA-ADP"},"assigner":"mozilla","products":["Mozilla Firefox","Mozilla Thunderbird"],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"115.35","status":"unaffected","lessThanOrEqual":"115.*","versionType":"rpm"},{"version":"140.10","status":"unaffected","lessThanOrEqual":"140.*","versionType":"rpm"},{"version":"150","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"140.10","status":"unaffected","lessThanOrEqual":"140.*","versionType":"rpm"},{"version":"150","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=2021080","https://www.mozilla.org/security/advisories/mfsa2026-30/","https://www.mozilla.org/security/advisories/mfsa2026-31/","https://www.mozilla.org/security/advisories/mfsa2026-32/","https://www.mozilla.org/security/advisories/mfsa2026-33/","https://www.mozilla.org/security/advisories/mfsa2026-34/"],"weaknesses":["CWE-290"],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/6xxx/CVE-2026-6762.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-6762","state":"PUBLISHED","datePublished":"2026-04-21T12:40:56.838Z","dateUpdated":"2026-05-26T18:40:29.784Z","assignerShortName":"mozilla","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateReserved":"2026-04-21T12:40:56.529Z"},"containers":{"cna":{"title":"Spoofing issue in the DOM: Core & HTML component","descriptions":[{"lang":"en","value":"Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10."}],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"115.35","status":"unaffected","lessThanOrEqual":"115.*","versionType":"rpm"},{"version":"140.10","status":"unaffected","lessThanOrEqual":"140.*","versionType":"rpm"},{"version":"150","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"140.10","status":"unaffected","lessThanOrEqual":"140.*","versionType":"rpm"},{"version":"150","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2021080"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-30/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-31/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-32/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-33/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-34/"}],"providerMetadata":{"shortName":"mozilla","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateUpdated":"2026-04-21T23:34:54.884Z"},"credits":[{"lang":"en","value":"Farras Givari"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.3,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","integrityImpact":"LOW","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"LOW","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-04-22T14:32:59.506415Z","id":"CVE-2026-6762","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-290","type":"CWE","lang":"en","description":"CWE-290 Authentication Bypass by Spoofing"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-26T18:40:29.784Z"}}]}}}