Vulnerability identifier: #VU29187
Vulnerability risk: Medium
CVSSv3.1: 6.2 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-284
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme
Web applications /
Modules and components for CMS
Vendor: King-Theme
Description
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in the "kc_installed_extensions" AJAX action in the "kingcomposer/includes/kc.ajax.php" script. A remote authenticated attacker can bypass implemented security restrictions and recursively delete any folders and files, for instance by sending a name=../../../wp-admin/ POST request to delete the content of the ‘/wp-admin/’ folder.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme: 2.0.0 - 2.9.2
External links
http://wpvulndb.com/vulnerabilities/10270/
http://blog.nintechnet.com/wordpress-kingcomposer-page-builder-fixed-multiple-critical-vulnerabilities/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.