Cross-site scripting in WordPress - CVE-2020-4047
Published: June 12, 2020 / Updated: June 22, 2020
Vulnerability identifier: #VU29005
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2020-4047
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. A remote user with upload permissions is able to add JavaScript to media files and execute arbitrary script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Affected software
WordPress
Debian Linux
Fedora
wordpress (Debian package)
wordpress
Debian Linux
Fedora
wordpress (Debian package)
wordpress
How to mitigate CVE-2020-4047
Install updates from vendor's website.
WordPress - addressed in versions 3.7.34, 3.8.34, 3.9.32, 4.0.31, 4.1.31, 4.2.28, 4.3.24, 4.4.23, 4.5.22, 4.6.19, 4.7.18, 4.8.14, 4.9.15, 5.0.10, 5.1.6, 5.2.7, 5.3.4, 5.4.2
wordpress (Debian package) - update to 5.0.10+dfsg1-0+deb10u1
wordpress - addressed in versions 5.1.6-1.el6, 5.1.6-1.el7, 5.4.2-1.fc31, 5.4.2-1.fc32
wordpress (Debian package) - update to 5.0.10+dfsg1-0+deb10u1
wordpress - addressed in versions 5.1.6-1.el6, 5.1.6-1.el7, 5.4.2-1.fc31, 5.4.2-1.fc32