CVE-2020-4050

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).

We have discovered 225,015 live websites that are affected by CVE-2020-4050.

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Affected Software

Product	WordPress
Category	Content Management System
Vulnerable Domains	225,015 live websites (100% of WordPress install base)
Vulnerable Versions	from 3.7 through 3.7.34 from 3.8 through 3.8.34 from 3.9 through 3.9.32 from 4 through 4.0.31 from 4.1 through 4.1.31 from 4.2 through 4.2.28 from 4.3 through 4.3.24 from 4.4 through 4.4.23 from 4.5 through 4.5.22 from 4.6 through 4.6.19 from 4.7 through 4.7.18 from 4.8 through 4.8.14 from 4.9 through 4.9.15 from 5 through 5.0.10 from 5.1 through 5.1.6 from 5.2 through 5.2.7 from 5.3 through 5.3.4 from 5.4 through 5.4.2
Vulnerable Versions Count	0 versions ( less than 0.1% of all versions)