Vulnerability identifier: #VU19240

Vulnerability risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Ad Inserter – Ad Manager & AdSense Ads
Web applications / Modules and components for CMS

Vendor: Igor Funa

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due improper input validation. A remote authenticated attacker who has this special cookie: AI_WP_DEBUGGING=2 can trigger the debugging feature, send a specially crafted request and execute arbitrary PHP code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Ad Inserter – Ad Manager & AdSense Ads: 1.6.0 - 2.4.21

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External links
http://plugins.trac.wordpress.org/changeset/2122577/ad-inserter
http://www.wordfence.com/blog/2019/07/critical-vulnerability-patched-in-ad-inserter-plugin/

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Q & A

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