CVE-2021-26539 (Medium) detected in sanitize-html-1.4.2.tgz

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CVE-2021-26539 - Medium Severity Vulnerability

Vulnerable Library - sanitize-html-1.4.2.tgz

Clean up user-submitted HTML, preserving whitelisted elements and whitelisted attributes on a per-element basis

Library home page: https://registry.npmjs.org/sanitize-html/-/sanitize-html-1.4.2.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/sanitize-html/package.json

Dependency Hierarchy: - :x: **sanitize-html-1.4.2.tgz** (Vulnerable Library)

Found in base branch: master

Vulnerability Details

Apostrophe Technologies sanitize-html before 2.3.1 does not properly handle internationalized domain name (IDN) which could allow an attacker to bypass hostname whitelist validation set by the "allowedIframeHostnames" option.

Publish Date: 2021-02-08

URL: CVE-2021-26539

CVSS 3 Score Details (5.3)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: Low - Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26539

Release Date: 2021-02-08

Fix Resolution: 2.3.1

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