CVE-2019-11762

MEDIUM
6.1
CVSS Score
Published: January 8, 2020 at 07:53 PM UTC
Updated: June 17, 2026 at 02:13 AM UTC
4 products affected across 2 vendorsUbuntu LinuxFirefoxThunderbird

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.6%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 70v < 70.0
Affected range stops below 70, so it looks safe — our inference, not a vendor statement
Affected range stops below 70.0, so it looks safe — our inference, not a vendor statement
v < 68.2
Affected range stops below 68.2, so it looks safe — our inference, not a vendor statement
v < 68.2
Affected range stops below 68.2, so it looks safe — our inference, not a vendor statement

References (6)

x_refsource_CONFIRMIssue TrackingPermissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1582857
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
https://security.gentoo.org/glsa/202003-10
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/4335-1/

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-346

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