#VU21109 Cross-site scripting - CVE-2019-16289
Published: September 15, 2019
Vulnerability identifier: #VU21109
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear
CVE-ID: CVE-2019-16289
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Software vendor:
Description
The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data when processing data passed via the winp_item parameter to "/wp-admin/post-new.php". A remote attacker can trick the victim to follow a specially crafted link 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.
Example:
http://[host]/wp-admin/post-new.php?post_type=wbcr-snippets&winp_item=phpl159r%22+onload%3Dalert%28document.cookie%29+be0bpc32ao+onload%3Dalert%281%29+zqggm
Remediation
Install update from vendor's website.