#VU29637 Cross-site scripting in Page Builder: KingComposer - Free Drag and Drop page builder by King-Theme - CVE-2020-15299
Published: July 10, 2020 / Updated: July 15, 2020
Vulnerability identifier: #VU29637
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-2020-15299
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable 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
Software vendor:
King-Theme
King-Theme
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 in the "kc-online-preset-data" POST parameter. 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.
Remediation
Install update from vendor's website.