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CVE-2021-38503

CVSS v3.1 10 (Critical)
100% Progress
CVSS v2.0 7.5 (High)
75% Progress
EPSS 0.53 % (77th)
0.53% Progress
Affected Products 4
Advisories 32
Info CVSS EPSS Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Weaknesses
CWE-863
Incorrect Authorization
CVE Status
PUBLISHED
CNA
Mozilla Corporation
Published Date
2021-12-08 22:15:08
(2 years ago)
Updated Date
2022-12-09 15:21:48
(21 months ago)

Affected Products

Debian

Mozilla

Configuration #1

    CPE23 From Up To
  Mozilla Firefox prior 94.0 version cpe:2.3:a:mozilla:firefox < 94.0
  Mozilla Firefox Esr prior 91.3 version cpe:2.3:a:mozilla:firefox_esr < 91.3
  Mozilla Thunderbird prior 91.3 version cpe:2.3:a:mozilla:thunderbird < 91.3

Configuration #2

    CPE23 From Up To
  Debian Linux 9.0 cpe:2.3:o:debian:debian_linux:9.0
  Debian Linux 10.0 cpe:2.3:o:debian:debian_linux:10.0
  Debian Linux 11.0 cpe:2.3:o:debian:debian_linux:11.0