Cross-site Scripting (XSS) Affecting tinymce package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
2.84% (86th percentile)

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  • Snyk IDSNYK-DEBIAN10-TINYMCE-6022879
  • published21 Oct 2023
  • disclosed19 Oct 2023

Introduced: 19 Oct 2023

CVE-2023-45819  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

There is no fixed version for Debian:10 tinymce.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tinymce package and not the tinymce package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1