CVE-2021-4140
- Source
- https://cve.org/CVERecord?id=CVE-2021-4140
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-4140.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-4140
- Downstream
- Related
- Published
- 2022-12-22T20:15:12.250Z
- Modified
- 2026-03-10T23:47:31.392898Z
- Severity
-
- 10.0 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
It was possible to construct specific XSLT markup that would be able to bypass an iframe sandbox. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.
- References
Affected packages
Git /
Database specific
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"fixed": "96.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "91.5"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "91.5"
}
]
}
]
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-4140.json"