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CVE-2020-26951

CVSS v3.1 6.1 (Medium)
61% Progress
CVSS v2.0 4.3 (Medium)
43% Progress
EPSS 0.09 % (37th)
0.09% Progress
Affected Products 3
Advisories 34
Info CVSS EPSS CAPEC Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

A parsing and event loading mismatch in Firefox's SVG code could have allowed load events to fire, even after sanitization. An attacker already capable of exploiting an XSS vulnerability in privileged internal pages could have used this attack to bypass our built-in sanitizer. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

Weaknesses
CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE Status
PUBLISHED
CNA
Mozilla Corporation
Published Date
2020-12-09 01:15:12
(3 years ago)
Updated Date
2020-12-09 19:49:24
(3 years ago)

Affected Products

Mozilla

Configuration #1

    CPE23 From Up To
  Mozilla Firefox prior 83.0 version cpe:2.3:a:mozilla:firefox < 83.0
  Mozilla Firefox Esr prior 78.5 version cpe:2.3:a:mozilla:firefox_esr < 78.5
  Mozilla Thunderbird prior 78.5 version cpe:2.3:a:mozilla:thunderbird < 78.5