Is CVE-2017-6513 actively exploited?

No active exploitation of CVE-2017-6513 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-6513 be exploited remotely?

Yes. CVE-2017-6513 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-6513?

CVE-2017-6513 has a CVSS score of 9.9 (CRITICAL).

HOME VULNERABILITIESCVE-2017-6513

CRITICAL

CVE-2017-6513

CWE-275Published: March 11, 2017· Updated: Jun 17, 2026

9.9

CVSS v3.1

Official Description

The WHMCS Reseller Module V2 2.0.2 in Softaculous Virtualizor before 2.9.1.0 does not verify the user correctly, which allows remote authenticated users to control other virtual machines managed by Virtualizor by accessing a modified URL.

NVD Source

Technical Analysis

CVE-2017-6513 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.9.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.