Vulnerability in WordPress
CVE-2020-28039
is_protected_meta in wp-includes/meta.php in WordPress before 5.5.2 allows arbitrary file deletion because it does not properly determine whether a meta key is considered protected.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.041 (90.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.041 · newest: 0.041 · change: 0.000
Affected products
- WordPress
- Canonical Ubuntu Linux — versions 16.04, 18.04, 20.04
- Debian Linux — versions 9.0, 10.0
Public proof-of-concept exploits
References
- wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/ (Release Notes, Vendor Advisory)
- wpscan.com/vulnerability/10452 (Third Party Advisory)
- github.com/WordPress/wordpress-develop/commit/d5ddd6d4be1bc9fd16b7796842e6fb263… (Patch, 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-2020-28039?
- CVE-2020-28039 is a critical-severity vulnerability in WordPress. CVSS score: 9.1/10. Published 2020-11-02.
- How severe is CVE-2020-28039?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2020-28039 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.