CVEvulnerability
CVE-2020-28037
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2020-11-02
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-754
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).
Affected configurations
• wordpress wordpress (< 5.5.2)
• fedoraproject fedora 31
• fedoraproject fedora 32
• fedoraproject fedora 33
• debian debian linux 10.0
Related
Weakness · CWE (1)
- CWE-754 Improper Check for Unusual or Exceptional Conditions weakness
References
- https://github.com/WordPress/wordpress-develop/commit/2ca15d1e5ce70493c5c0c096ca0c76503d6da07c Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/11/msg00004.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CHHVNK2WYAM3ZTCXTFSEIT56IKLVJHU3/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VAVVYJKA2I6CRQUINECDPBGWMQDEG244/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUXVUAKL2HL4QYJEPHBNVQQWRMFMII2Y/ lists.fedoraproject.org
- https://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/ Release Notes, Vendor Advisory
- https://wpscan.com/vulnerability/10450 Third Party Advisory
- https://www.debian.org/security/2020/dsa-4784 Third Party Advisory
- https://github.com/WordPress/wordpress-develop/commit/2ca15d1e5ce70493c5c0c096ca0c76503d6da07c Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/11/msg00004.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CHHVNK2WYAM3ZTCXTFSEIT56IKLVJHU3/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VAVVYJKA2I6CRQUINECDPBGWMQDEG244/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUXVUAKL2HL4QYJEPHBNVQQWRMFMII2Y/ lists.fedoraproject.org
- https://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/ Release Notes, Vendor Advisory
- https://wpscan.com/vulnerability/10450 Third Party Advisory
- https://www.debian.org/security/2020/dsa-4784 Third Party Advisory