Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed. This could have been used as a sanitizer bypass. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
References
Link | Resource |
---|---|
https://bugzilla.mozilla.org/show_bug.cgi?id=1680084 | Permissions Required |
https://www.mozilla.org/security/advisories/mfsa2020-54/ | Vendor Advisory |
https://www.mozilla.org/security/advisories/mfsa2020-55/ | Vendor Advisory |
https://www.mozilla.org/security/advisories/mfsa2020-56/ | Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mozilla
Published: 2021-01-07T13:53:21
Updated: 2021-01-07T13:53:21
Reserved: 2020-10-12T00:00:00
Link: CVE-2020-26973
JSON object: View
NVD Information
Status : Analyzed
Published: 2021-01-07T14:15:11.893
Modified: 2021-01-11T21:41:32.003
Link: CVE-2020-26973
JSON object: View
Redhat Information
No data.
CWE