CVE-2020-28037 Information

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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).

CVSS Vector

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

Reference

https://github.com/WordPress/wordpress-develop/commit/2ca15d1e5ce70493c5c0c096ca0c76503d6da07c https://lists.debian.org/debian-lts-announce/2020/11/msg00004.html https://lists.fedoraproject.org/archives/list/[email protected]/message/CHHVNK2WYAM3ZTCXTFSEIT56IKLVJHU3/ https://lists.fedoraproject.org/archives/list/[email protected]/message/VAVVYJKA2I6CRQUINECDPBGWMQDEG244/ https://lists.fedoraproject.org/archives/list/[email protected]/message/VUXVUAKL2HL4QYJEPHBNVQQWRMFMII2Y/ https://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/ https://wpscan.com/vulnerability/10450 https://www.debian.org/security/2020/dsa-4784

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8