#VU22768 Improper access control in Email Subscribers & Newsletters


Published: 2019-11-14

Vulnerability identifier: #VU22768

Vulnerability risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Email Subscribers & Newsletters
Web applications / Modules and components for CMS

Vendor: icegram

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists in the "admin_init" action due to improper access restrictions within the "admin-post.php" or "admin-ajax.php". A remote attacker can send a request to "admin-ajax.php" or "admin-post.php" with the "es_skip" parameter set to 1 and the "option_name" parameter set to the desired value and gain ability to create a new option.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Email Subscribers & Newsletters: 3.1 - 4.2.2


External links
http://www.wordfence.com/blog/2019/11/multiple-vulnerabilities-patched-in-email-subscribers-newsletters-plugin/


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. However, proof of concept for this vulnerability is available.


Latest bulletins with this vulnerability