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CVE-2020-4046

MEDIUM 5.4 CVSS 3.1
Published
June 12, 2020
Last modified
June 17, 2026
NVD status
Modified
Reported by
security-advisories@github.com
Weakness
CWE-80, CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

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).

Affected WordPress components

  • WordPress core
    Confirmed match
    From 5.2 (including) to 5.2.7 (excluding); From 5.3.0 (including) to 5.3.4 (excluding); From 3.7 (including) to 3.7.34 (excluding); From 3.8 (including) to 3.8.34 (excluding); From 3.9 (including) to 3.9.32 (excluding); From 4.0 (including) to 4.0.31 (excluding); From 4.1 (including) to 4.1.31 (excluding); From 4.2 (including) to 4.2.28 (excluding); From 4.3 (including) to 4.3.24 (excluding); From 4.4 (including) to 4.4.23 (excluding); From 4.5 (including) to 4.5.22 (excluding); From 4.6 (including) to 4.6.19 (excluding); From 4.7 (including) to 4.7.18 (excluding); From 4.8 (including) to 4.8.14 (excluding); From 4.9 (including) to 4.9.15 (excluding); From 5.0 (including) to 5.0.10 (excluding); From 5.1 (including) to 5.1.6 (excluding); From 5.4 (including) to 5.4.2 (excluding)

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • WordPress wordpress-develop — Version >= 5.4.0, < 5.4.2
  • WordPress wordpress-develop — Version >= 5.3.0, < 5.3.4
  • WordPress wordpress-develop — Version >= 5.2.0, < 5.2.7
  • WordPress wordpress-develop — Version >= 5.1.0, < 5.1.6
  • WordPress wordpress-develop — Version >= 5.0.0, < 5.0.10
  • WordPress wordpress-develop — Version >= 4.9.0, < 4.9.15
  • WordPress wordpress-develop — Version >= 4.8.0, < 4.8.14
  • WordPress wordpress-develop — Version >= 4.7.0, < 4.7.18
  • WordPress wordpress-develop — Version >= 4.6.0, < 4.6.19
  • WordPress wordpress-develop — Version >= 4.5.0, < 4.5.22
  • WordPress wordpress-develop — Version >= 4.4.0, < 4.4.23
  • WordPress wordpress-develop — Version >= 4.3.0, < 4.3.24
  • WordPress wordpress-develop — Version >= 4.2.0, < 4.2.28
  • WordPress wordpress-develop — Version >= 4.1.0, < 4.1.31
  • WordPress wordpress-develop — Version >= 4.0.0, < 4.0.31
  • WordPress wordpress-develop — Version >= 3.9.0, < 3.9.32
  • WordPress wordpress-develop — Version >= 3.8.0, < 3.8.34
  • WordPress wordpress-develop — Version >= 3.7.0, < 3.7.34
  • wordpress wordpress — From 3.7 (including) to 3.7.34 (excluding)
  • wordpress wordpress — From 3.8 (including) to 3.8.34 (excluding)
  • wordpress wordpress — From 3.9 (including) to 3.9.32 (excluding)
  • wordpress wordpress — From 4.0 (including) to 4.0.31 (excluding)
  • wordpress wordpress — From 4.1 (including) to 4.1.31 (excluding)
  • wordpress wordpress — From 4.2 (including) to 4.2.28 (excluding)
  • wordpress wordpress — From 4.3 (including) to 4.3.24 (excluding)
  • wordpress wordpress — From 4.4 (including) to 4.4.23 (excluding)
  • wordpress wordpress — From 4.5 (including) to 4.5.22 (excluding)
  • wordpress wordpress — From 4.6 (including) to 4.6.19 (excluding)
  • wordpress wordpress — From 4.7 (including) to 4.7.18 (excluding)
  • wordpress wordpress — From 4.8 (including) to 4.8.14 (excluding)
  • wordpress wordpress — From 4.9 (including) to 4.9.15 (excluding)
  • wordpress wordpress — From 5.0 (including) to 5.0.10 (excluding)
  • wordpress wordpress — From 5.1 (including) to 5.1.6 (excluding)
  • wordpress wordpress — From 5.2 (including) to 5.2.7 (excluding)
  • wordpress wordpress — From 5.3.0 (including) to 5.3.4 (excluding)
  • wordpress wordpress — From 5.4 (including) to 5.4.2 (excluding)

References

  • github.com https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rpwf-hrh2-39jf Third Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2020/07/msg00000.html Mailing List, Third Party Advisory
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/773N2ZV7QEMBGKH6FBKI6Q5S3YJMW357/
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODNHXVJS25YVWYQHOCICXTLIN5UYJFDN/
  • wordpress.org https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/ Vendor Advisory
  • www.debian.org https://www.debian.org/security/2020/dsa-4709 Third Party Advisory
  • nvd.nist.gov Official NVD record