WS-2021-0406 (Medium) detected in tinymce-4.7.9.min.js - autoclosed

[mend-bolt-for-github[bot]]

WS-2021-0406 - Medium Severity Vulnerability

Vulnerable Library - tinymce-4.7.9.min.js

TinyMCE rich text editor

Library home page: https://cdnjs.cloudflare.com/ajax/libs/tinymce/4.7.9/tinymce.min.js

Path to vulnerable library: /src/MvcAreasForEPiServer.Forms/modules/_protected/EPiServer.Cms.TinyMce/EPiServer.Cms.TinyMce/2.1.0/ClientResources/tinymce/tinymce.min.js

Dependency Hierarchy: - :x: **tinymce-4.7.9.min.js** (Vulnerable Library)

Found in base branch: master

Vulnerability Details

A cross-site scripting (XSS) vulnerability was discovered in the schema validation logic of the core parser. The vulnerability allowed arbitrary JavaScript execution when inserting a specially crafted piece of content into the editor using the clipboard or editor APIs. This malicious content could then end up in content published outside the editor, if no server-side sanitization was performed. This impacts all users who are using TinyMCE 5.8.2 or lower.

Publish Date: 2021-10-22

URL: WS-2021-0406

CVSS 3 Score Details (6.1)

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://github.com/advisories/GHSA-5h9g-x5rv-25wg

Release Date: 2021-10-22

Fix Resolution: TinyMCE - 5.9.0, tinymce - 5.9.0, tinymce/tinymce - 5.9.0

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[mend-bolt-for-github[bot]]

:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.