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CVE-2019-11763

CVSS v3.1 6.1 (Medium)
61% Progress
CVSS v2.0 4.3 (Medium)
43% Progress
EPSS 0.15 % (53th)
0.15% Progress
Affected Products 4
Advisories 31
Info CVSS EPSS CAPEC Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

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.

Weaknesses
CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE Status
PUBLISHED
CNA
Mozilla Corporation
Published Date
2020-01-08 20:15:12
(4 years ago)
Updated Date
2023-02-03 17:27:52
(19 months ago)

Affected Products

Canonical

Mozilla

Configuration #1

    CPE23 From Up To
  Mozilla Firefox prior 70.0 version cpe:2.3:a:mozilla:firefox < 70.0
  Mozilla Firefox Esr prior 68.2 version cpe:2.3:a:mozilla:firefox_esr < 68.2
  Mozilla Thunderbird prior 68.2 version cpe:2.3:a:mozilla:thunderbird < 68.2

Configuration #2

    CPE23 From Up To
  Canonical Ubuntu Linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm