CVE-2018-5136

High

Description

A shared worker created from a "data:" URL in one tab can be shared by another tab with a different origin, bypassing the same-origin policy. This vulnerability affects Firefox < 59.

SeverityHigh
CVSS7.5
Exploit probability—
ProductMozilla Firefox
PublishedJun 11, 2018
First seenJun 11, 2018

How to fix

Update
  • mozilla firefox59.0 or later
Vendor advisories

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 59.059.0
canonical ubuntu_linux14.04, 16.04, 17.10—

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