Name: CVE-2018-3740: Improper Neutralization of Input During Web Page Generation
Creator: Rapid7
Published: 2018-03-30T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2018-3740, CWE-79, CWE-20, CVSS 7.5, EPSS 0.01468

A specially crafted HTML fragment can cause Sanitize gem for Ruby to allow non-whitelisted attributes to be used on a whitelisted HTML element.

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:N/I:H/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Arch Linux	—	Upgrade to the latest version of Arch Linux	Jul 11, 2025	Mar 30, 2018
Debian	—	Upgrade ruby-sanitize	Dec 28, 2018	Mar 19, 2018
Freebsd	—	Upgrade gitlabUpgrade rubygem-sanitize	Jun 25, 2018	Jun 25, 2018
Suse	—	Upgrade ruby2.5-rubygem-nokogiri	Feb 4, 2022	Mar 19, 2018
Ubuntu	—	Upgrade ruby-sanitize	Nov 19, 2024	Mar 30, 2018

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CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence