A regex denial of service (ReDoS) vulnerability was discovered in a dependency of the codesample plugin. The vulnerability allowed poorly formed ruby code samples to lock up the browser while performing syntax highlighting. This impacts users of the codesample plugin using TinyMCE 5.5.1 or lower.
This vulnerability has been patched in TinyMCE 5.6.0 by upgrading to a version of the dependency without the vulnerability.
WS-2021-0001 - High Severity Vulnerability
TinyMCE rich text editor
Library home page: https://cdnjs.cloudflare.com/ajax/libs/tinymce/4.9.11/tinymce.min.js
Path to vulnerable library: /wp-content/themes/Divi/includes/builder/frontend-builder/assets/vendors/tinymce.min.js
Dependency Hierarchy: - :x: **tinymce-4.9.11.min.js** (Vulnerable Library)
Found in HEAD commit: ab76dd905220f63a5e50d7a6c36543f1d876d52a
Found in base branch: master
A regex denial of service (ReDoS) vulnerability was discovered in a dependency of the codesample plugin. The vulnerability allowed poorly formed ruby code samples to lock up the browser while performing syntax highlighting. This impacts users of the codesample plugin using TinyMCE 5.5.1 or lower. This vulnerability has been patched in TinyMCE 5.6.0 by upgrading to a version of the dependency without the vulnerability.
Publish Date: 2021-01-05
URL: WS-2021-0001
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: None - Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://github.com/tinymce/tinymce/security/advisories/GHSA-h96f-fc7c-9r55
Release Date: 2021-01-05
Fix Resolution: tinymce - 5.6.0
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