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: Nov 2, 2020
Updated: Apr 14, 2023
CVE: CVE-2020-28039
Severity: Critical
Exploit:

CVSS v3:

Severity: Critical
Score: 9.1
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CVSS v2:

Severity: Medium
Score: 6.4
AV:N/AC:L/Au:N/C:N/I:P/A:P

No CWE or OWASP classifications available.

Affected Software
References

Software	From	Fixed in
WordPress / wordpress	-	5.5.2
debian / debian_linux	9.0	9.0.x
debian / debian_linux	10.0	10.0.x
canonical / ubuntu_linux	18.04	18.04.x
canonical / ubuntu_linux	20.04	20.04.x
canonical / ubuntu_linux	16.04	16.04.x

https://github.com/WordPress/wordpress-develop/commit/d5ddd6d4be1bc9fd16b7796842e6fb26315705ad
https://lists.debian.org/debian-lts-announce/2020/11/msg00004.html
https://lists.fedoraproject.org/archives/list/[email protected]/message/CHHVNK2WYAM3ZTCXTFSEIT56IKLVJHU3/
https://lists.fedoraproject.org/archives/list/[email protected]/message/VAVVYJKA2I6CRQUINECDPBGWMQDEG244/
https://lists.fedoraproject.org/archives/list/[email protected]/message/VUXVUAKL2HL4QYJEPHBNVQQWRMFMII2Y/
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/
https://wpscan.com/vulnerability/10452
https://www.debian.org/security/2020/dsa-4784

Vulnerability Database

289,689

CVE-2020-28039