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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2020-4054 Detail

Description

In Sanitize (RubyGem sanitize) greater than or equal to 3.0.0 and less than 5.2.1, there is a cross-site scripting vulnerability. When HTML is sanitized using Sanitize's "relaxed" config, or a custom config that allows certain elements, some content in a math or svg element may not be sanitized correctly even if math and svg are not in the allowlist. You are likely to be vulnerable to this issue if you use Sanitize's relaxed config or a custom config that allows one or more of the following HTML elements: iframe, math, noembed, noframes, noscript, plaintext, script, style, svg, xmp. Using carefully crafted input, an attacker may be able to sneak arbitrary HTML through Sanitize, potentially resulting in XSS (cross-site scripting) or other undesired behavior when that HTML is rendered in a browser. This has been fixed in 5.2.1.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/rgrove/sanitize/commit/a11498de9e283cd457b35ee252983662f7452aa9 CVE, GitHub, Inc. Patch  Third Party Advisory 
https://github.com/rgrove/sanitize/releases/tag/v5.2.1 CVE, GitHub, Inc. Release Notes  Third Party Advisory 
https://github.com/rgrove/sanitize/security/advisories/GHSA-p4x4-rw2p-8j8m CVE, GitHub, Inc. Third Party Advisory 
https://usn.ubuntu.com/4543-1/ CVE, GitHub, Inc.
https://www.debian.org/security/2020/dsa-4730 CVE, GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-4054
NVD Published Date:
06/16/2020
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.