Stored cross-site scripting in WordPress - CVE-2019-17674
Published: October 15, 2019 / Updated: October 30, 2019
Vulnerability identifier: #VU21786
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2019-17674
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in Customizer. A remote attacker can inject and execute arbitrary HTML and 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
wordpress (Debian package)
wordpress (Debian package)
How to mitigate CVE-2019-17674
Install updates from vendor's website.
WordPress - addressed in versions 3.7.31, 3.8.31, 3.9.29, 4.0.28, 4.1.28, 4.2.25, 4.3.21, 4.4.20, 4.5.19, 4.6.16, 4.7.15, 4.8.11, 4.9.12, 5.0.7, 5.1.3, 5.2.4
wordpress (Debian package) - addressed in versions 4.7.5+dfsg-2+deb9u6, 5.0.4+dfsg1-1+deb10u1, 5.0.4+dfsg1-1+deb10u2, 5.4.1+dfsg1-1
wordpress (Debian package) - addressed in versions 4.7.5+dfsg-2+deb9u6, 5.0.4+dfsg1-1+deb10u1, 5.0.4+dfsg1-1+deb10u2, 5.4.1+dfsg1-1