{"affected":[{"affectedData":[{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"*","status":"unaffected","version":"138","versionType":"rpm"}]},{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"*","status":"unaffected","version":"138","versionType":"rpm"}]}],"source":"security@mozilla.org"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*","matchCriteriaId":"EB8A8C7B-B65D-4DF5-BDB5-0C3C4E2DB72C","versionEndExcluding":"138.0","vulnerable":true},{"criteria":"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*","matchCriteriaId":"D1E8CCF1-4E91-44CC-A652-B23D1337A485","versionEndExcluding":"138.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"Due to insufficient escaping of special characters in the \"copy as cURL\" feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system. This vulnerability was fixed in Firefox 138 and Thunderbird 138."},{"lang":"es","value":"Debido a la insuficiente capacidad de escape de caracteres especiales en la función “copiar como cURL”, un atacante podría engañar a un usuario para que use este comando, lo que podría provocar la ejecución de código local en su sistema. Esta vulnerabilidad afecta a Firefox (versión anterior a la 138) y Thunderbird (versión anterior a la 138)."}],"id":"CVE-2025-4089","lastModified":"2026-09-30T18:10:00.190","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":5.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"exploitabilityScore":2.5,"impactScore":2.5,"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2025-4089","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","timestamp":"2025-04-30T03:56:33.167784Z","version":"2.0.3"}}]},"published":"2025-04-29T14:15:35.537","references":[{"source":"security@mozilla.org","tags":["Broken Link"],"url":"https://bugzilla.mozilla.org/buglist.cgi?bug_id=1949994%2C1956698%2C1960198"},{"source":"security@mozilla.org","tags":["Vendor Advisory"],"url":"https://www.mozilla.org/security/advisories/mfsa2025-28/"},{"source":"security@mozilla.org","tags":["Vendor Advisory"],"url":"https://www.mozilla.org/security/advisories/mfsa2025-31/"}],"sourceIdentifier":"security@mozilla.org","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-77"}],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary"}]}