CVE-2020-28037

Description

is_blog_installed in wp-includes/functions.php in WordPress before 5.5.2 improperly determines whether WordPress is already installed, which might allow an attacker to perform a new installation, leading to remote code execution (as well as a denial of service for the old installation).

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 12.73% Top 10%
Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory wordpress.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/ release notes vendor advisory
https://github.com/WordPress/wordpress-develop/commit/2ca15d1e5ce70493c5c0c096ca0c76503d6da07c third party advisory patch
https://wpscan.com/vulnerability/10450 third party advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00004.html third party advisory mailing list
https://www.debian.org/security/2020/dsa-4784 third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VAVVYJKA2I6CRQUINECDPBGWMQDEG244/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUXVUAKL2HL4QYJEPHBNVQQWRMFMII2Y/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CHHVNK2WYAM3ZTCXTFSEIT56IKLVJHU3/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-28037?
CVE-2020-28037 has been scored as a critical severity vulnerability.
How to fix CVE-2020-28037?
To fix CVE-2020-28037, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-28037 being actively exploited in the wild?
It is possible that CVE-2020-28037 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~13% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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