CVE-2020-28037
CRITICAL9.8EPSS 14.1%Published: 11/2/2020Modified: 5/27/2026
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 packages (3)
- Bitnami/wordpressfrom 0, < 5.5.2
- Bitnami/wordpress-multisitefrom 0, < 5.5.2
- Debian/wordpressfrom 0, < 5.5.3+dfsg1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
References (10)
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2020-28037
- WEBhttps://github.com/WordPress/wordpress-develop/commit/2ca15d1e5ce70493c5c0c096ca0c76503d6da07c
- WEBhttps://lists.debian.org/debian-lts-announce/2020/11/msg00004.html
- WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CHHVNK2WYAM3ZTCXTFSEIT56IKLVJHU3/
- WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VAVVYJKA2I6CRQUINECDPBGWMQDEG244/
- WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUXVUAKL2HL4QYJEPHBNVQQWRMFMII2Y/
- WEBhttps://nvd.nist.gov/vuln/detail/CVE-2020-28037
- WEBhttps://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/
- WEBhttps://wpscan.com/vulnerability/10450
- WEBhttps://www.debian.org/security/2020/dsa-4784