Is CVE-2018-1000659 actively exploited?

No active exploitation of CVE-2018-1000659 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-1000659 be exploited remotely?

Yes. CVE-2018-1000659 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2018-1000659?

CVE-2018-1000659 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2018-1000659

CWE-22Published: September 6, 2018· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

LimeSurvey version 3.14.4 and earlier contains a directory traversal in file upload that allows upload of webshell vulnerability in file upload functionality that can result in remote code execution as authenticated user. This attack appear to be exploitable via An authenticated user can upload a specially crafted zip file to get remote code execution. This vulnerability appears to have been fixed in after commit 72a02ebaaf95a80e26127ee7ee2b123cccce05a7 / version 3.14.4.

NVD Source

Technical Analysis

CVE-2018-1000659 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 8.8.