Authenticated XSS through embed block in WordPress
Summary
Authenticated XSS through embed block in WordPress
Original description
The description as published by the source.
In affected versions of WordPress, users with low privileges (like contributors and authors) can use the embed block in a certain way to inject unfiltered HTML in the block editor. When affected posts are viewed by a higher privileged user, this could lead to script execution in the editor/wp-admin. This has been patched in version 5.4.2, along with all the previously affected versions via a minor release (5.3.4, 5.2.7, 5.1.6, 5.0.10, 4.9.15, 4.8.14, 4.7.18, 4.6.19, 4.5.22, 4.4.23, 4.3.24, 4.2.28, 4.1.31, 4.0.31, 3.9.32, 3.8.34, 3.7.34).
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2020-4046 wordpress Fixed in: 5.4.2+dfsg1-1
References
- advisory github.com
- advisory lists.debian.org
- advisory wordpress.org
- advisory debian.org
- web lists.fedoraproject.org
- web lists.fedoraproject.org
- web nvd.nist.gov