Is CVE-2017-9071 actively exploited?

No active exploitation of CVE-2017-9071 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-9071 be exploited remotely?

Yes. CVE-2017-9071 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-9071?

CVE-2017-9071 has a CVSS score of 4.7 (MEDIUM).

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MEDIUM

CVE-2017-9071

CWE-79Published: May 18, 2017· Updated: Jun 17, 2026

4.7

CVSS v3.1

Official Description

In MODX Revolution before 2.5.7, an attacker might be able to trigger XSS by injecting a payload into the HTTP Host header of a request. This is exploitable only in conjunction with other issues such as Cache Poisoning.

NVD Source

Technical Analysis

CVE-2017-9071 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

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.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.