Failure to correctly handle null bytes when processing HTML entities resulted in Firefox incorrectly parsing these entities. This could have led to HTML comment text being treated as HTML which could have led to XSS in a web application under certain conditions. It could have also led to HTML entities being masked from filters - enabling the use of entities to mask the actual characters of interest from filters. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mozilla
Published: 2020-01-08T19:59:44
Updated: 2024-08-04T23:03:32.794Z
Reserved: 2019-05-03T00:00:00
Link: CVE-2019-11763
Vulnrichment
No data.
NVD
Status : Modified
Published: 2020-01-08T20:15:12.953
Modified: 2024-11-21T04:21:44.670
Link: CVE-2019-11763
Redhat