Cross-site scripting in WordPress - CVE-2017-17093

Vulnerability identifier: #VU9454

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear

CVE-ID: CVE-2017-17093

CWE-ID: CWE-79

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: WordPress.ORG

Affected software:
WordPress

The vulnerability allows a remote attacker to perform XSS attacks.

The vulnerability exists due to insufficient sanitization of the language attributes used on html elements in wp-includes/general-template.php script. A remote attacker can bypass implemented filters and execute arbitrary HTML and script code in victims browser in context of the vulnerable website.

Update to version 4.9.1.

• https://wordpress.org/news/2017/11/wordpress-4-9-1-security-and-maintenance-release/