Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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

2020-11-02T21:15:30.977

Last Modified

2024-11-21T05:22:15.213

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-754

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	wordpress	wordpress	< 5.5.2	Yes
Operating System	fedoraproject	fedora	31	Yes
Operating System	fedoraproject	fedora	32	Yes
Operating System	fedoraproject	fedora	33	Yes
Operating System	debian	debian_linux	10.0	Yes

References

https://github.com/WordPress/wordpress-develop/commit/2ca15d1e5ce70493c5c0c096ca0c76503d6da07c Patch, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2020/11/msg00004.html Mailing List, Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CHHVNK2WYAM3ZTCXTFSEIT56IKLVJHU3/ ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VAVVYJKA2I6CRQUINECDPBGWMQDEG244/ ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUXVUAKL2HL4QYJEPHBNVQQWRMFMII2Y/ ([email protected])
https://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/ Release Notes, Vendor Advisory ([email protected])
https://wpscan.com/vulnerability/10450 Third Party Advisory ([email protected])
https://www.debian.org/security/2020/dsa-4784 Third Party Advisory ([email protected])
https://github.com/WordPress/wordpress-develop/commit/2ca15d1e5ce70493c5c0c096ca0c76503d6da07c Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2020/11/msg00004.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CHHVNK2WYAM3ZTCXTFSEIT56IKLVJHU3/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VAVVYJKA2I6CRQUINECDPBGWMQDEG244/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUXVUAKL2HL4QYJEPHBNVQQWRMFMII2Y/ (af854a3a-2127-422b-91ae-364da2661108)
https://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/ Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://wpscan.com/vulnerability/10450 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2020/dsa-4784 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)