Vulnerability identifier: #VU18971

Vulnerability risk: High

CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-89

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WP Statistics
Web applications / Modules and components for CMS

Vendor: VeronaLabs

Description

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to an endpoint of the API, which is exposed when the 'use cache plugin' setting is enabled. A remote attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.

PoC:

time curl -X POST 'http://host/wp-json/wpstatistics/v1/hit' --data "wp_statistics_hit=x&wp_statistics_hit[track_all]=1&wp_statistics_hit[page_uri]=x&wp_statistics_hit[search_query]=x\' UNION ALL SELECT SLEEP(5)-- x"

Mitigation
Install updates from vendor's website.

Vulnerable software versions

WP Statistics: 1.0 - 12.6.6.1

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External links
http://github.com/wp-statistics/wp-statistics/commit/bd46721b97794a1b1520e24ff5023b6da738dd75

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