Vulnerability identifier: #VU19647

Vulnerability risk: Low

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: CVE-2018-16363

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
File Manager
Web applications / Modules and components for CMS

Vendor: mndpsingh287

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 the lang parameter in a wp-admin/admin.php?page=wp_file_manager request because set_transient is used in file_folder_manager.php and there is an echo of lang in libwpfilemanager.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.

Mitigation
Update to version 3.0.

Vulnerable software versions

File Manager: 1.0 - 1.8

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External links
http://wordpress.org/support/topic/security-concern-6/#post-10655739
http://plugins.trac.wordpress.org/changeset/1936043
http://blog.51cto.com/010bjsoft/2171087

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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.