Summaryinfo

A vulnerability classified as problematic has been found in WordPress 5.3.1. This affects an unknown part of the component Block Editor. The manipulation leads to cross site scripting. This vulnerability is uniquely identified as CVE-2019-16780. It is possible to initiate the attack remotely. There is no exploit available. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Detailsinfo

A vulnerability was found in WordPress 5.3.1 (Content Management System). It has been rated as problematic. Affected by this issue is an unknown function of the component Block Editor. 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:

WordPress users with lower privileges (like contributors) can inject JavaScript code in the block editor using a specific payload, which is executed within the dashboard. This can lead to XSS if an admin opens the post in the editor. Execution of this attack does require an authenticated user. This has been patched in WordPress 5.3.1, along with all the previous WordPress versions from 3.7 to 5.3 via a minor release. Automatic updates are enabled by default for minor releases and we strongly recommend that you keep them enabled.

The weakness was published 12/26/2019 (GitHub Repository). The advisory is available at github.com. This vulnerability is handled as CVE-2019-16780 since 09/24/2019. The attack may be launched remotely. The successful exploitation requires a simple authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 12/27/2019). This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entry is available at VDB-147771. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Content Management System

Name

• WordPress

Version

• 5.3.1

License

• open-source

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