#VU27483 SQL injection in PHP-Fusion - CVE-2020-12461

Vulnerability identifier: #VU27483

Vulnerability risk: High

CVSSv4.0: 8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-12461

CWE-ID: CWE-89

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PHP-Fusion
Web applications / CMS

Vendor: PHP-Fusion

Description

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

The vulnerability exists due to insufficient sanitization of user-supplied data in maincore.php when processing the "sort_order" GET parameter on the members.php members search page. 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.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability..

Vulnerable software versions

PHP-Fusion: 9.03.50

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External links
https://github.com/php-fusion/PHP-Fusion/commit/79fe5ec1d5c75e017a6f42127741b9543658f822
https://github.com/php-fusion/PHP-Fusion/commit/858e43d7b0ea1897f76d5bcb3a1aed438132c0e2
https://github.com/php-fusion/PHP-Fusion/commit/d95cd4a2d22487723266c898b98e6be10754e03d
https://github.com/php-fusion/PHP-Fusion/issues/2308
https://hackmd.io/lq7nA3ISSoeiGjiHVn5CoA

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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.