Vulnerability in WordPress
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 service for the old installation).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.081 (94.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.081 · newest: 0.081 · change: 0.000
Affected products
- WordPress
- Debian Linux — versions 10.0
- Fedoraproject Fedora — versions 31, 32, 33
Weakness classification (CWE)
Public proof-of-concept exploits
References
- wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/ (Release Notes, Vendor Advisory)
- github.com/WordPress/wordpress-develop/commit/2ca15d1e5ce70493c5c0c096ca0c76503… (Patch, Third Party Advisory)
- wpscan.com/vulnerability/10450 (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/11/msg00004.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2020/dsa-4784 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2020-28037?
- CVE-2020-28037 is a critical-severity vulnerability in WordPress, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 9.8/10. Published 2020-11-02.
- How severe is CVE-2020-28037?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-28037 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.