CVE-2020-4050 — set-screen-option filter misuse by plugins leading to privilege escalation in WordPress

Description (CNA)

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 (CNA)

Vendor / product	Versions
WordPress / wordpress-develop	affected >= 5.4.0, < 5.4.2; affected >= 5.3.0, < 5.3.4; affected >= 5.2.0, < 5.2.7; affected >= 5.1.0, < 5.1.6; affected >= 5.0.0, < 5.0.10; affected >= 4.9.0, < 4.9.15; affected >= 4.8.0, < 4.8.14; affected >= 4.7.0, < 4.7.18; affected >= 4.6.0, < 4.6.19; affected >= 4.5.0, < 4.5.22; affected >= 4.4.0, < 4.4.23; affected >= 4.3.0, < 4.3.24; affected >= 4.2.0, < 4.2.28; affected >= 4.1.0, < 4.1.31; affected >= 4.0.0, < 4.0.31; affected >= 3.9.0, < 3.9.32; affected >= 3.8.0, < 3.8.34; affected >= 3.7.0, < 3.7.34

Vendor / product

Versions

WordPress / wordpress-develop

affected >= 5.4.0, < 5.4.2; affected >= 5.3.0, < 5.3.4; affected >= 5.2.0, < 5.2.7; affected >= 5.1.0, < 5.1.6; affected >= 5.0.0, < 5.0.10; affected >= 4.9.0, < 4.9.15; affected >= 4.8.0, < 4.8.14; affected >= 4.7.0, < 4.7.18; affected >= 4.6.0, < 4.6.19; affected >= 4.5.0, < 4.5.22; affected >= 4.4.0, < 4.4.23; affected >= 4.3.0, < 4.3.24; affected >= 4.2.0, < 4.2.28; affected >= 4.1.0, < 4.1.31; affected >= 4.0.0, < 4.0.31; affected >= 3.9.0, < 3.9.32; affected >= 3.8.0, < 3.8.34; affected >= 3.7.0, < 3.7.34

CWE

CWE-288

References

ADP enrichment

CVE

No English description supplied.