{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-09-29T16:21:02.505","vulnerabilities":[{"cve":{"id":"CVE-2025-5266","sourceIdentifier":"security@mozilla.org","published":"2025-05-27T13:15:22.403","lastModified":"2026-06-17T09:47:34.647","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Script elements loading cross-origin resources generated load and error events which leaked information enabling XS-Leaks attacks. This vulnerability was fixed in Firefox 139, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11."},{"lang":"es","value":"Los elementos de script que cargaban recursos de origen cruzado generaban eventos de carga y error que filtraban información, lo que facilitaba los ataques XS-Leaks. Esta vulnerabilidad afecta a Firefox < 139 y Firefox ESR < 128.11."}],"affected":[{"source":"security@mozilla.org","affectedData":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"128.11","lessThanOrEqual":"128.*","versionType":"rpm","status":"unaffected"},{"version":"139","lessThanOrEqual":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"128.11","lessThanOrEqual":"128.*","versionType":"rpm","status":"unaffected"},{"version":"139","lessThanOrEqual":"*","versionType":"rpm","status":"unaffected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-09-23T14:44:04.447377Z","id":"CVE-2025-5266","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","description":[{"lang":"en","value":"CWE-200"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*","versionEndExcluding":"128.11.0","matchCriteriaId":"4BA097AB-46D1-4C4E-9856-9109237940C3"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*","versionEndExcluding":"139.0","matchCriteriaId":"E2C0FE7C-6F8E-4F1D-A768-914194586E0C"}]}]}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1965628","source":"security@mozilla.org","tags":["Permissions Required"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-42/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-44/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-45/","source":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-46/","source":"security@mozilla.org"},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00043.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00046.html","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}