{"affected":[{"affectedData":[{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"128.*","status":"unaffected","version":"128.8","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"136","versionType":"rpm"}]},{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"128.*","status":"unaffected","version":"128.8","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"136","versionType":"rpm"}]}],"source":"security@mozilla.org"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*","matchCriteriaId":"51A0498A-4BF8-4166-A347-78023C0A6B33","versionEndExcluding":"128.8.0","vulnerable":true},{"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*","matchCriteriaId":"7DB4CDD0-EC54-43D0-ACB2-F159ABA53D2C","versionEndExcluding":"136.0","vulnerable":true},{"criteria":"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*","matchCriteriaId":"D3C5A2B6-C7B5-4888-B0A7-9DA0C3024C71","versionEndExcluding":"128.8.0","vulnerable":true},{"criteria":"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*","matchCriteriaId":"93C81C9D-FC2E-4D7D-A97F-8DB97ED92192","versionEndExcluding":"136.0","versionStartIncluding":"129.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"A web page could trick a user into setting that site as the default handler for a custom URL protocol. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8."},{"lang":"es","value":"Una página web podría engañar a un usuario para que configure ese sitio como el controlador predeterminado para un protocolo de URL personalizado. Esta vulnerabilidad afecta a Firefox menor que 136, Firefox ESR menor que 128.8, Thunderbird menor que 136 y Thunderbird menor que 128.8."}],"id":"CVE-2025-1935","lastModified":"2026-10-05T15:10:00.590","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","version":"3.1"},"exploitabilityScore":2.8,"impactScore":1.4,"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2025-1935","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","timestamp":"2025-03-04T15:40:29.183426Z","version":"2.0.3"}}]},"published":"2025-03-04T14:15:38.390","references":[{"source":"security@mozilla.org","tags":["Issue Tracking"],"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1866661"},{"source":"security@mozilla.org","tags":["Vendor Advisory"],"url":"https://www.mozilla.org/security/advisories/mfsa2025-14/"},{"source":"security@mozilla.org","tags":["Vendor Advisory"],"url":"https://www.mozilla.org/security/advisories/mfsa2025-16/"},{"source":"security@mozilla.org","tags":["Vendor Advisory"],"url":"https://www.mozilla.org/security/advisories/mfsa2025-17/"},{"source":"security@mozilla.org","tags":["Vendor Advisory"],"url":"https://www.mozilla.org/security/advisories/mfsa2025-18/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00006.html"}],"sourceIdentifier":"security@mozilla.org","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-79"}],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary"}]}