Name: CVE-2018-5136: Improper Input Validation
Creator: Rapid7
Published: 2018-06-11T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2018-5136, CWE-20, CVSS 7.5, EPSS 0.0159

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.

CVSS Details

CVSS 3.1 Base Score: 7.5
CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Freebsd	—	Upgrade thunderbirdUpgrade linux-thunderbirdUpgrade firefoxUpgrade firefox-esrUpgrade linux-firefoxUpgrade libxulUpgrade waterfoxUpgrade seamonkeyUpgrade linux-seamonkey	Dec 10, 2025	Mar 13, 2018
Mfsa2018 06	—	Upgrade to Mozilla Firefox version 59.0Upgrade to the latest version of Mozilla Firefox	Jul 12, 2018	Jun 11, 2018
Suse	—	Upgrade MozillaFirefox-translations-otherUpgrade MozillaFirefox-translations-commonUpgrade MozillaFirefox	May 20, 2018	Mar 14, 2018
Ubuntu	—	Upgrade firefox	Apr 26, 2018	Mar 14, 2018

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CVSS Details

Covered by Rapid7

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