Cross-site scripting in Page Builder: KingComposer - Free Drag and Drop page builder by King-Theme - #VU18397
Published: May 6, 2019 / Updated: May 7, 2019
Vulnerability identifier: #VU18397
CSH Severity: Medium
CVSS v4.0: 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:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: King-Theme
Affected software:
Page Builder: KingComposer - Free Drag and Drop page builder by King-Theme
Page Builder: KingComposer - Free Drag and Drop page builder by King-Theme
Detailed vulnerability description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient validation of user-supplied input passed via the KC section. A remote attacker with the Contributor or Author privileges 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.
Remediation
Install updates from vendor's website.