{"id":"CVE-2021-29953","details":"A malicious webpage could have forced a Firefox for Android user into executing attacker-controlled JavaScript in the context of another domain, resulting in a Universal Cross-Site Scripting vulnerability. *Note: This issue only affected Firefox for Android. Other operating systems are unaffected. Further details are being temporarily withheld to allow users an opportunity to update.*. This vulnerability affects Firefox \u003c 88.0.1 and Firefox for Android \u003c 88.1.3.","modified":"2026-05-04T08:37:43.237852Z","published":"2021-06-24T14:15:10Z","withdrawn":"2026-05-04T08:37:43.237852Z","references":[{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2021-20/"},{"type":"REPORT","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1701684"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-29953.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"88.0.1"}]},{"events":[{"introduced":"0"},{"fixed":"88.1.3"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}