CVE-2020-28040

Name: CVE-2020-28040
Creator: NVD / NIST
Published: 2020-11-02T21:15:31.197+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 1.07%

Last modified Jun 17, 2026

CVE-2020-28040 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. WordPress before 5.5.2 allows CSRF attacks that change a theme's background image.. EPSS estimates a 1.07% chance of exploitation in the next 30 days.

Description

WordPress before 5.5.2 allows CSRF attacks that change a theme's background image.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

1.07%

60.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-352

Affected Software

Vendor	Product	Versions
Wordpress	Wordpress	< 5.5.2
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	20.04

References

https://blog.wpscan.com/2020/10/30/wordpress-5.5.2-security-release.htmlRelease Notes, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00004.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CHHVNK2WYAM3ZTCXTFSEIT56IKLVJHU3/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VAVVYJKA2I6CRQUINECDPBGWMQDEG244/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUXVUAKL2HL4QYJEPHBNVQQWRMFMII2Y/
https://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/Release Notes, Vendor Advisory
https://www.debian.org/security/2020/dsa-4784Third Party Advisory
https://blog.wpscan.com/2020/10/30/wordpress-5.5.2-security-release.htmlRelease Notes, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00004.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CHHVNK2WYAM3ZTCXTFSEIT56IKLVJHU3/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VAVVYJKA2I6CRQUINECDPBGWMQDEG244/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUXVUAKL2HL4QYJEPHBNVQQWRMFMII2Y/
https://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/Release Notes, Vendor Advisory
https://www.debian.org/security/2020/dsa-4784Third Party Advisory

Timeline

Published: Nov 2, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-28040?

WordPress before 5.5.2 allows CSRF attacks that change a theme's background image.

How severe is CVE-2020-28040?

CVE-2020-28040 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 1.07% probability of exploitation in the next 30 days.

How do I fix CVE-2020-28040?

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.

Are you affected by CVE-2020-28040?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST