CVE-2018-5136

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-20

Affected software

No affected versions have been published.

Timeline

Published
Jun 11, 2018
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2018

CVE-2018-51377.5A legacy extension's non-contentaccessible, defined resources can be loaded by an arbitrary web page through script. This script does this bCVE-2018-51385.3A spoofing vulnerability can occur when a malicious site with an extremely long domain name is opened in an Android Custom Tab (a browser paCVE-2018-51405.3Image for moz-icons can be accessed through the "moz-icon:" protocol through script in web content even when otherwise prohibited. This coulCVE-2018-51418.2A vulnerability in the notifications Push API where notifications can be sent through service workers by web content without direct user intCVE-2018-51425.3If Media Capture and Streams API permission is requested from documents with "data:" or "blob:" URLs, the permission notifications do not prCVE-2018-51436.1URLs using "javascript:" have the protocol removed when pasted into the addressbar to protect users from cross-site scripting (XSS) attacks,CVE-2018-51447.3An integer overflow can occur during conversion of text to some Unicode character sets due to an unchecked length parameter. This vulnerabilCVE-2018-51459.8Memory safety bugs were reported in Firefox ESR 52.6. These bugs showed evidence of memory corruption and we presume that with enough effortCVE-2018-51468.8An out of bounds memory write while processing Vorbis audio data was reported through the Pwn2Own contest. This vulnerability affects FirefoCVE-2018-51479.8The libtremor library has the same flaw as CVE-2018-5146. This library is used by Firefox in place of libvorbis on Android and ARM platformsCVE-2018-51489.8A use-after-free vulnerability can occur in the compositor during certain graphics operations when a raw pointer is used instead of a refereCVE-2018-51509.8Memory safety bugs were reported in Firefox 59, Firefox ESR 52.7, and Thunderbird 52.7. Some of these bugs showed evidence of memory corrupt
CVE-2018-5136: High severity, CVSS 7.5 | Vulnix