#VU24143 Stored cross-site scripting in WordPress - CVE-2019-16780
Published: January 8, 2020
Vulnerability identifier: #VU24143
Vulnerability risk: Low
CVSSv4.0: 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/E:U/U:Clear
CVE-ID: CVE-2019-16780
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
WordPress
WordPress
Software vendor:
WordPress.ORG
WordPress.ORG
Description
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 within the block editor content. 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.
Remediation
Install updates from vendor's website.
External links
- https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
- https://github.com/WordPress/wordpress-develop/commit/505dd6a20b6fc3d06130018c1caeff764248c29e
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-x3wp-h3qx-9w94
- https://hackerone.com/reports/738644