CVE-2020-4046
MEDIUMWordPress 3.7-5.4.1 - Authenticated Stored Cross-Site Scripting via Embed Block
Title source: llmDescription
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).
References (6)
Core 6
Core References
Third Party Advisory x_refsource_confirm
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rpwf-hrh2-39jf
Vendor Advisory x_refsource_misc
https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODNHXVJS25YVWYQHOCICXTLIN5UYJFDN/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/773N2ZV7QEMBGKH6FBKI6Q5S3YJMW357/
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2020/dsa-4709
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/07/msg00000.html
Scores
CVSS v3
5.4
EPSS
0.0685
EPSS Percentile
91.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Details
CWE
CWE-80
CWE-79
Status
published
Products (5)
debian/debian_linux
8.0
debian/debian_linux
9.0
fedoraproject/fedora
31
fedoraproject/fedora
32
wordpress/wordpress
3.7 - 3.7.34
Published
Jun 12, 2020
Tracked Since
Feb 18, 2026