CVE-2022-23494
Severity CVSS v4.0:
Pending analysis
Type:
CWE-79
Cross-Site Scripting (XSS)
Publication date:
08/12/2022
Last modified:
12/12/2022
Description
tinymce is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in the alert and confirm dialogs when these dialogs were provided with malicious HTML content. This can occur in plugins that use the alert or confirm dialogs, such as in the `image` plugin, which presents these dialogs when certain errors occur. The vulnerability allowed arbitrary JavaScript execution when an alert presented in the TinyMCE UI for the current user. This vulnerability has been patched in TinyMCE 5.10.7 and TinyMCE 6.3.1 by ensuring HTML sanitization was still performed after unwrapping invalid elements. Users are advised to upgrade to either 5.10.7 or 6.3.1. Users unable to upgrade may ensure the the `images_upload_handler` returns a valid value as per the images_upload_handler documentation.
Impact
Base Score 3.x
6.10
Severity 3.x
MEDIUM
Vulnerable products and versions
CPE | From | Up to |
---|---|---|
cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:* | 5.10.7 (excluding) | |
cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:* | 6.0.0 (including) | 6.3.1 (excluding) |
To consult the complete list of CPE names with products and versions, see this page
References to Advisories, Solutions, and Tools
- https://github.com/tinymce/tinymce/commit/6923d85eba6de3e08ebc9c5a387b5abdaa21150e
- https://github.com/tinymce/tinymce/commit/8bb2d2646d4e1a718fce61a775fa22e9d317b32d
- https://github.com/tinymce/tinymce/security/advisories/GHSA-gg8r-xjwq-4w92
- https://www.tiny.cloud/docs/release-notes/release-notes5107/#securityfixes
- https://www.tiny.cloud/docs/tinymce/6/6.3-release-notes/#security-fixes
- https://www.tiny.cloud/docs/tinymce/6/file-image-upload/#images_upload_handler