Bug 1793663 (CVE-2019-16780) - CVE-2019-16780 wordpress: XSS in WordPress block editor
Summary: CVE-2019-16780 wordpress: XSS in WordPress block editor
Keywords:
Status: NEW
Alias: CVE-2019-16780
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1793664 1793665
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-01-21 18:55 UTC by Guilherme de Almeida Suckevicz
Modified: 2020-01-21 18:55 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed:


Attachments (Terms of Use)

Description Guilherme de Almeida Suckevicz 2020-01-21 18:55:16 UTC
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.

Reference:
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-x3wp-h3qx-9w94

Upstream commit:
https://github.com/WordPress/wordpress-develop/commit/505dd6a20b6fc3d06130018c1caeff764248c29e

Comment 1 Guilherme de Almeida Suckevicz 2020-01-21 18:55:58 UTC
Created wordpress tracking bugs for this issue:

Affects: epel-6 [bug 1793664]
Affects: epel-7 [bug 1793665]


Note You need to log in before you can comment on or make changes to this bug.