En resumen
- CVE-2023-45819 es una vulnerabilidad MEDIO (CVSS 6.1) que afecta a TinyMCE, tinymce/tinymce, tinymce (tiny).
- Probabilidad de explotación en los próximos 30 días (EPSS): 0.63%, mayor que el 50.4% de las vulnerabilidades.
- Solución: actualizar a 6.7.1, 5.10.8 o posterior.
| Package | Affected versions | Patched versions |
|---|
| TinyMCE NuGet | ≥ 6.0.0, < 6.7.1< 5.10.8
| 6.7.15.10.8
|
| tinymce/tinymce Packagist | ≥ 6.0.0, < 6.7.1< 5.10.8
| 6.7.15.10.8
|
| tinymce | ≥ 6.0.0, < 6.7.1< 5.10.8
| 6.7.15.10.8
|
| tinymce npm | ≥ 6.0.0, < 6.7.1< 5.10.8
| 6.7.15.10.8
|
Description
Impact
A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s Notification Manager API. The vulnerability exploits TinyMCE's unfiltered notification system, which is used in error handling. The conditions for this exploit requires carefully crafted malicious content to have been inserted into the editor and a notification to have been triggered.
When a notification was opened, the HTML within the text argument was displayed unfiltered in the notification. The vulnerability allowed arbitrary JavaScript execution when an notification presented in the TinyMCE UI for the current user. This issue could also be exploited by any integration which uses a TinyMCE notification to display unfiltered HTML content.
Patches
This vulnerability has been patched in TinyMCE 5.10.8 and TinyMCE 6.7.1 by ensuring that the HTML displayed in the notification is sanitized, preventing the exploit.
Fix
To avoid this vulnerability:
- Upgrade to TinyMCE 5.10.8 or higher for TinyMCE 5.x.
- Upgrade to TinyMCE 6.7.1 or higher for TinyMCE 6.x.
References
For more information
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NVD description
TinyMCE is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s Notification Manager API. The vulnerability exploits TinyMCE's unfiltered notification system, which is used in error handling. The conditions for this exploit requires carefully crafted malicious content to have been inserted into the editor and a notification to have been triggered. When a notification was opened, the HTML within the text argument was displayed unfiltered in the notification. The vulnerability allowed arbitrary JavaScript execution when an notification presented in the TinyMCE UI for the current user. This issue could also be exploited by any integration which uses a TinyMCE notification to display unfiltered HTML content. This vulnerability has been patched in TinyMCE 5.10.8 and TinyMCE 6.7.1 by ensuring that the HTML displayed in the notification is sanitized, preventing the exploit. Users are advised to upgrade. There are no known workarounds for this vulnerability.
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