Permissions, Privileges, and Access Controls in WordPress - CVE-2020-28033

 

Permissions, Privileges, and Access Controls in WordPress - CVE-2020-28033

Published: November 2, 2020 / Updated: November 9, 2020


Vulnerability identifier: #VU48201
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-28033
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to application mishandles embeds from disabled sites on a multisite network. A remote attacker can send out spam.


Affected software

WordPress
Arch Linux
Fedora
wordpress (Debian package)
wordpress

How to mitigate CVE-2020-28033

Install updates from vendor's website.

WordPress - update to 5.5.2
wordpress (Debian package) - update to 5.0.11+dfsg1-0+deb10u1
wordpress - addressed in versions 5.1.8-1.el6, 5.1.8-1.el7, 5.5.3-1.fc31, 5.5.3-1.fc32, 5.5.3-1.fc33

External References

Related Security Bulletins