{"schemaVersion":3,"id":"CVE-2020-6830","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"For native-to-JS bridging, the app requires a unique token to be passed that ensures non-app code can't call the bridging functions. That token was being used for JS-to-native also, but it isn't needed in this case, and its usage was also leaking this token. This vulnerability affects Firefox for iOS < 25.","dates":{"published":"2020-05-26T17:06:52.000Z","modified":"2024-08-04T09:11:05.047Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.0091,"percentile":0.59328,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.007000000000000062,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00903},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0091,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0091,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0091,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0091,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0091,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0091,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0091,"percentile":0.59328}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00903,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0091,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0091,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0091,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0091,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0091,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0091,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0091,"percentile":0.59328}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor","description":"The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/200.html"}],"affected":[{"vendor":"mozilla","product":"firefox for ios","name":"Firefox for iOS","label":"firefox for ios","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < 25","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < 25","eol":null,"hubHref":"/vendor/mozilla/firefox_for_ios"},{"vendor":"mozilla","product":"firefox_mobile","name":"firefox mobile","label":"firefox_mobile","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 25.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 25.0","eol":null,"hubHref":"/vendor/mozilla/firefox_mobile"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2020-15/","label":"www.mozilla.org/security/advisories/mfsa2020-15/","hostname":"www.mozilla.org","tags":["X Refsource MISC","Vendor Advisory"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1632387","label":"bugzilla.mozilla.org/show_bug.cgi?id=1632387","hostname":"bugzilla.mozilla.org","tags":["X Refsource MISC","Permissions Required"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2020-05-26T17:06:52.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T09:11:05.047Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T14:37:49.541Z","stale":false,"partial":false}}