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CVE-2020-4050

LOWCVSS 3.1/10EPSS 1.73%

Last modified

CVE-2020-4050 is a low-severity vulnerability rated 3.1/10 on the CVSS scale. 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. EPSS estimates a 1.73% chance of exploitation in the next 30 days.

Description

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).

Metrics

CVSS 3.1
3.1/10

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS Probability
1.73%

74.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
WordpressWordpress>= 3.7, < 3.7.34
WordpressWordpress>= 3.8, < 3.8.34
WordpressWordpress>= 3.9, < 3.9.32
WordpressWordpress>= 4.0, < 4.0.31
WordpressWordpress>= 4.1, < 4.1.31
WordpressWordpress>= 4.2, < 4.2.28
WordpressWordpress>= 4.3, < 4.3.24
WordpressWordpress>= 4.4, < 4.4.23
WordpressWordpress>= 4.5, < 4.5.22
WordpressWordpress>= 4.6, < 4.6.19
WordpressWordpress>= 4.7, < 4.7.18
WordpressWordpress>= 4.8, < 4.8.14
WordpressWordpress>= 4.9, < 4.9.15
WordpressWordpress>= 5.0, < 5.0.10
WordpressWordpress>= 5.1, < 5.1.6
WordpressWordpress>= 5.2, < 5.2.7
WordpressWordpress>= 5.3.0, < 5.3.4
WordpressWordpress>= 5.4, < 5.4.2
FedoraprojectFedora31
FedoraprojectFedora32
DebianDebian Linux8.0
DebianDebian Linux9.0
DebianDebian Linux10.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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).
How severe is CVE-2020-4050?
CVE-2020-4050 has a CVSS score of 3.1/10 (LOW severity). The EPSS model estimates a 1.73% probability of exploitation in the next 30 days.
How do I fix CVE-2020-4050?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST