UpHeron
All vulnerabilities

WordPress core

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.

Severity
Critical 9.1
Published
2 Nov 2020
Last changed
17 Jun 2026
Added to UpHeron
17 Oct 2026
Fixed in
5.5.2
Sources
NVD

Affected software

SoftwareAffected versions
WordPressWordPress core · cpe:a:wordpress:wordpress
  • Every version before 5.5.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-28039
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-28039