CVE-2018-1000659

What it is

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.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account. High risk of data exposure, data tampering, service disruption.

Exploit odds

3.6% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2018-09-06 17:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 01:33 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 3.6% in the next 30 days (EPSS).
• Severity: 8.8 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2018-09-06 17:29 UTC

Last modified

2026-06-17 01:33 UTC

Exploit probability

3.6% · EPSS, next 30 days

Weakness

CWE-22 · Path traversal

Record status

Modified

Affected

• Limesurvey ≤ 3.14.4

Attack profile CVSS 3.0 · 8.8

Attack vector

Network

Complexity

Low

Privileges needed

Low

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2018-1000659.md and follow it. Check whether this project is affected by CVE-2018-1000659. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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