| Package | Affected versions | Patched versions |
|---|---|---|
| tinymce | ≥ 5.0.0, < 5.1.4< 4.9.7 | 5.1.44.9.7 |
| tinymce | ≥ 5.0.0, < 5.1.4< 4.9.7 | 5.1.44.9.7 |
A cross-site scripting (XSS) vulnerability was discovered in: the core parser, paste and visualchars plugins. The vulnerability allowed arbitrary JavaScript execution when inserting a specially crafted piece of content into the editor via the clipboard or APIs. This impacts all users who are using TinyMCE 4.9.6 or lower and TinyMCE 5.1.3 or lower.
This vulnerability has been patched in TinyMCE 4.9.7 and 5.1.4 by improved parser logic and HTML sanitization.
The workarounds available are:
BeforeSetContent event (see below)editor.on('BeforeSetContent', function(e) {
var sanitizedContent = ...; // Manually sanitize content here
e.content = sanitizedContent;
});
Tiny Technologies would like to thank Michał Bentkowski for discovering this vulnerability.
https://www.tiny.cloud/docs/release-notes/release-notes514/#securityfixes
If you have any questions or comments about this advisory:
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free