Cross-Origin DOM Method Access Vulnerability in Firefox, Thunderbird, and Firefox ESR

CVE-2019-11762 · MEDIUM Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

If two same-origin documents set document.domain differently to become cross-origin, it was possible for them to call arbitrary DOM methods/getters/setters on the now-cross-origin window. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

Learn more about our Web Application Penetration Testing UK.