CVE-2020-4050: Debian Linux

Low severity, CVSS 3.1. EPSS: 1.4% chance of exploitation in the next 30 days.

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).

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only; version 10.0 only
• Fedoraproject Fedora: version 31 only; version 32 only
• WordPress WordPress: from 3.7, before 3.7.34 (fixed in 3.7.34); from 3.8, before 3.8.34 (fixed in 3.8.34); from 3.9, before 3.9.32 (fixed in 3.9.32); from 4.0, before 4.0.31 (fixed in 4.0.31); from 4.1, before 4.1.31 (fixed in 4.1.31); from 4.2, before 4.2.28 (fixed in 4.2.28); …

Published 2020-06-12. Last modified 2026-06-17.