Is CVE-2017-16244 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2017-16244, but active exploitation has not been confirmed.

Can CVE-2017-16244 be exploited remotely?

Yes. CVE-2017-16244 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-16244?

CVE-2017-16244 has a CVSS score of 8.8 (HIGH).

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HIGHPOC

CVE-2017-16244

CWE-352Published: November 1, 2017· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

Cross-Site Request Forgery exists in OctoberCMS 1.0.426 (aka Build 426) due to improper validation of CSRF tokens for postback handling, allowing an attacker to successfully take over the victim's account. The attack bypasses a protection mechanism involving X-CSRF headers and CSRF tokens via a certain _handler postback variable.

NVD Source

Technical Analysis

CVE-2017-16244 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.

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 8.8.

A proof-of-concept (PoC) exploit exists for CVE-2017-16244. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.