Cross-site request forgery in WordPress - CVE-2020-28040
Published: October 30, 2020 / Updated: November 9, 2020
Vulnerability identifier: #VU48040
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-28040
CWE-ID: CWE-352
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform cross-site request forgery attacks.
The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website, such as change a theme's background image.
Affected software
WordPress
Arch Linux
Fedora
wordpress (Debian package)
wordpress
Arch Linux
Fedora
wordpress (Debian package)
wordpress
How to mitigate CVE-2020-28040
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
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