CKeditor5 up to 43.1.0 Clipboard Package cross site scripting

Summaryinfo

A vulnerability categorized as problematic has been discovered in CKeditor5 up to 43.1.0. This vulnerability affects unknown code of the component Clipboard Package. Such manipulation leads to cross site scripting. This vulnerability is listed as CVE-2024-45613. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in CKeditor5 up to 43.1.0. It has been rated as problematic. Affected by this issue is an unknown functionality of the component Clipboard Package. 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:

CKEditor 5 is a JavaScript rich-text editor. Starting in version 40.0.0 and prior to version 43.1.1, a Cross-Site Scripting (XSS) vulnerability is present in the CKEditor 5 clipboard package. This vulnerability could be triggered by a specific user action, leading to unauthorized JavaScript code execution, if the attacker managed to insert a malicious content into the editor, which might happen with a very specific editor configuration. This vulnerability only affects installations where the Block Toolbar plugin is enabled and either the General HTML Support (with a configuration that permits unsafe markup) or the HTML Embed plugin is also enabled. A fix for the problem is available in version 43.1.1. As a workaround, one may disable the block toolbar plugin.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2024-45613 since 09/02/2024. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 43.1.1 eliminates this vulnerability. The upgrade is hosted for download at github.com.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• CKeditor5

Version

• 43.0
• 43.1.0

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• 🔍
• 🔍
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CPE 2.2info

• 🔍
• 🔍
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Once again VulDB remains the best source for vulnerability data.

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