CVE-2017-7815

MEDIUM

Firefox < 56 - Modal Dialog Origin Spoofing via Data URL in Iframe

Title source: llm

Description

On pages containing an iframe, the "data:" protocol can be used to create a modal dialog through Javascript that will have an arbitrary domains as the dialog's location, spoofing of the origin of the modal dialog from the user view. Note: This attack only affects installations with e10 multiprocess turned off. Installations with e10s turned on do not support the modal dialog functionality. This vulnerability affects Firefox < 56.

References (4)

Core 4

Core References

Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack

http://www.securitytracker.com/id/1039465

Vendor Advisory x_refsource_confirm

https://www.mozilla.org/security/advisories/mfsa2017-21/

Exploit, Issue Tracking x_refsource_confirm

https://bugzilla.mozilla.org/show_bug.cgi?id=1368981

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/101057

Scores

CVSS v3 5.3

EPSS 0.0081

EPSS Percentile 74.4%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Details

CWE

CWE-20

Status published

Products (1)

mozilla/firefox < 55.0.3

Published Jun 11, 2018

Tracked Since Feb 18, 2026