Improper Authentication in ThemeGrill Demo Importer plugin for WordPress

1) Improper Authentication

EUVDB-ID: #VU25383

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to the "admin_init hook" runs not only in the admin environment but also on calls to "/wp-admin/admin-ajax.php" which does not require a user to be authenticated. A remote attacker can bypass authentication process and wipe the entire database to its default state after which they are automatically logged in as an administrator.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ThemeGrill Demo Importer: 1.3.4 - 1.6.1

External links

http://wpvulndb.com/vulnerabilities/10071/
http://www.webarxsecurity.com/critical-issue-in-themegrill-demo-importer/

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.