JiHong88 SunEditor up to 2.47.10 Sanitizer src/lib/core.js cross site scripting

Summaryinfo

A vulnerability was found in JiHong88 SunEditor up to 2.47.10. It has been rated as problematic. The affected element is an unknown function of the file src/lib/core.js of the component Sanitizer. Performing a manipulation results in cross site scripting. This vulnerability is known as CVE-2026-59167. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in JiHong88 SunEditor up to 2.47.10. It has been classified as problematic. This affects an unknown function of the file src/lib/core.js of the component Sanitizer. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. The summary by CVE is:

SunEditor is a lightweight and powerful WYSIWYG editor in vanilla JavaScript with no dependencies. Prior to 2.47.11, the sanitizer in src/lib/core.js does not consistently reject namespaced or custom HTML elements, allowing event-handler attributes to remain on crafted elements. When an application renders attacker-controlled editor content and a user interacts with the element, the retained handler can execute script in the application's browser origin, enabling stored cross-site scripting, data exposure, or unauthorized browser-context actions. This issue is fixed in version 2.47.11.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-59167 since 07/02/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 2.47.11 eliminates this vulnerability.

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Productinfo

Vendor

• JiHong88

Name

• SunEditor

Version

• 2.47.0
• 2.47.1
• 2.47.2
• 2.47.3
• 2.47.4
• 2.47.5
• 2.47.6
• 2.47.7
• 2.47.8
• 2.47.9
• 2.47.10

Website

• Product: https://github.com/JiHong88/suneditor/

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