TinyMCE up to 5.10.7/6.7.0 cross site scripting

Summaryinfo

A vulnerability was found in TinyMCE up to 5.10.7/6.7.0 and classified as problematic. Affected by this issue is some unknown functionality. Such manipulation leads to cross site scripting. This vulnerability is uniquely identified as CVE-2023-45819. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in TinyMCE up to 5.10.7/6.7.0. Affected by this issue is an unknown code. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

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.

The weakness was disclosed 10/20/2023 as GHSA-hgqx-r2hp-jr38. The advisory is available at github.com. This vulnerability is handled as CVE-2023-45819 since 10/13/2023. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 5.10.8 or 6.7.1 eliminates this vulnerability.

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Productinfo

Name

• TinyMCE

Version

• 5.10.0
• 5.10.1
• 5.10.2
• 5.10.3
• 5.10.4
• 5.10.5
• 5.10.6
• 5.10.7
• 6.0
• 6.1
• 6.2
• 6.3
• 6.4
• 6.5
• 6.6
• 6.7.0

Website

• Product: https://github.com/tinymce/tinymce/

CPE 2.3info

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CPE 2.2info

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