Bug 1793663 (CVE-2019-16780) - CVE-2019-16780 wordpress: XSS in WordPress block editor
Summary: CVE-2019-16780 wordpress: XSS in WordPress block editor
Status: NEW
Alias: CVE-2019-16780
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1793664 1793665
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:
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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.


Upstream commit:

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]

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