CVE-2020-28037
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.07%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 8.07% probability · 94th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-754
- Affected
- wordpress/wordpress · fedoraproject/fedora · debian/debian linux
- Source
- cve@mitre.org
References
- https://github.com/WordPress/wordpress-develop/commit/2ca15d1e5ce70493c5c0c096ca0c76503d6da07cPatch, Third Party 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://wpscan.com/vulnerability/10450Third Party Advisory
- https://www.debian.org/security/2020/dsa-4784Third Party Advisory
- https://github.com/WordPress/wordpress-develop/commit/2ca15d1e5ce70493c5c0c096ca0c76503d6da07cPatch, Third Party 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://wpscan.com/vulnerability/10450Third Party Advisory
- https://www.debian.org/security/2020/dsa-4784Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.