Vulnerabilities > CVE-2020-4050
Attack vector
NETWORK Attack complexity
HIGH Privileges required
LOW Confidentiality impact
NONE Integrity impact
LOW Availability impact
NONE Summary
In affected versions of WordPress, misuse of the `set-screen-option` filter's return value allows arbitrary user meta fields to be saved. It does require an admin to install a plugin that would misuse the filter. Once installed, it can be leveraged by low privileged users. 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).
Vulnerable Configurations
References
- https://github.com/WordPress/wordpress-develop/commit/b8dea76b495f0072523106c6ec46b9ea0d2a0920
- https://github.com/WordPress/wordpress-develop/commit/b8dea76b495f0072523106c6ec46b9ea0d2a0920
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-4vpv-fgg2-gcqc
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-4vpv-fgg2-gcqc
- https://lists.debian.org/debian-lts-announce/2020/07/msg00000.html
- https://lists.debian.org/debian-lts-announce/2020/07/msg00000.html
- https://lists.debian.org/debian-lts-announce/2020/09/msg00011.html
- https://lists.debian.org/debian-lts-announce/2020/09/msg00011.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/773N2ZV7QEMBGKH6FBKI6Q5S3YJMW357/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/773N2ZV7QEMBGKH6FBKI6Q5S3YJMW357/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODNHXVJS25YVWYQHOCICXTLIN5UYJFDN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODNHXVJS25YVWYQHOCICXTLIN5UYJFDN/
- https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/
- https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/
- https://www.debian.org/security/2020/dsa-4709
- https://www.debian.org/security/2020/dsa-4709