CVE-2016-20096: SQL Injection (CVSS 9.8)

Description

Linknat VOS3000 and VOS2009 through version 2.1.2.0 contain an unauthenticated SQL injection vulnerability that allows remote attackers to execute arbitrary SQL commands by manipulating the name parameter in a POST request to the login endpoint. Attackers can inject malicious SQL through the login form and retrieve injected query results from a subsequent session request, enabling extraction of plaintext credentials and other database content with DBA-level privileges.

Is your site exposed to CVE-2016-20096?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-89 SQL Injection

References

Other References

https://packetstorm.news/files/id/137159 https://web.archive.org/web/20160601102456/http://www.wooyun.org/bugs/wooyun-2010-0145458 https://www.linknat.com/ https://www.vulncheck.com/advisories/linknat-vos3000-vos2009-sql-injection-via-login-jsp

Frequently Asked Questions

What is CVE-2016-20096? +

Linknat VOS3000 and VOS2009 through version 2.1.2.0 contain an unauthenticated SQL injection vulnerability that allows remote attackers to execute arbitrary SQL commands by manipulating the name parameter in a POST request to the login endpoint. Attackers can inject malicious SQL through the login form and retrieve injected query results from a subsequent session request, enabling extraction of plaintext credentials and other database content with DBA-level privileges. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2016-20096? +

CVE-2016-20096 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

How do I check if I'm vulnerable to CVE-2016-20096? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-15625

Unauthenticated user is able to execute arbitrary SQL commands in Sparx Pro Cloud Server database in certain cases.

CVE-2026-40482

ChurchCRM is an open-source church management system. Versions prior to 7.2.0 have SQL injection in FinancialService::getMemberByScanString() via unsanitized $routeAndAccount concatenated …

CVE-2025-41029

SQL injection vulnerability in Zeon Academy Pro by Zeon Global Tech. This vulnerability allows an attacker to retrieve, create, update, …

CVE-2026-25606

A SQL injection vulnerability has been identified in STER. Improper neutralization of input provided by user into multiple Search Filters …

CVE-2026-40329

Masa CMS is an open source content management system. In versions 7.5.2 and earlier, a SQL injection vulnerability exists in …

CVE-2026-41889

pgx is a PostgreSQL driver and toolkit for Go. Prior to version 5.9.2, SQL injection can occur when the non-default …

CVE-2016-20096