Cross-site scripting in Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme for WordPress

1) Cross-site scripting

EUVDB-ID: #VU18397

Risk: Medium

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme: 2.8.1

CPE2.3

• cpe:2.3:a:kingthemes:kingcomposer:2.8.1:*:*:*:*:*:*:

External links

http://wpvulndb.com/vulnerabilities/9265/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.