https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-07T19:53:29.738641+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2019-11763 CVE-2019-11763 2026-10-07T19:53:29.757935+00:00

Affected: Mozilla Firefox, Mozilla Thunderbird, Mozilla Firefox ESR

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.