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VULNERABILITIES

CVE-2020-4046 Details

Description

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).

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References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rpwf-hrh2-39jf CVEThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00000.html CVEMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/773N2ZV7QEMBGKH6FBKI6Q5S3YJMW357/ CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODNHXVJS25YVWYQHOCICXTLIN5UYJFDN/ CVE
https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/ CVEVendor Advisory

see all 12 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')[email protected]
CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)[email protected]

Affected Products

ProductVersions
wordpress wordpress
>= 3.7, < 3.7.34
>= 3.8, < 3.8.34
>= 3.9, < 3.9.32
>= 4.0, < 4.0.31
>= 4.1, < 4.1.31

CPE

  • cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
debian debian linux
8.0
9.0

CPE

  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
fedoraproject fedora
31
32

CPE

  • cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

9 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2020-4046
NVD Published Date:
Jun 12, 2020
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2020-4046 Details - Not Deferred