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CVE-2020-4050

Published: 12 June 2020

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).

Priority

Low

Cvss 3 Severity Score

3.1

Score breakdown

Status

Package Release Status
wordpress
Launchpad, Ubuntu, Debian
kinetic Ignored
(end of life, was needs-triage)
hirsute Ignored
(end of life)
xenial Needs triage

jammy Needs triage

bionic Needs triage

eoan Ignored
(end of life)
focal Needs triage

groovy Ignored
(end of life)
impish Ignored
(end of life)
lunar Not vulnerable
(6.0+dfsg1-1ubuntu1)
trusty Does not exist

upstream
Released (5.4.2+dfsg1-1)
mantic Not vulnerable
(6.0+dfsg1-1ubuntu1)

Severity score breakdown

Parameter Value
Base score 3.1
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N