---
title: "CVE-2017-1000600\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2017-1000600?format=md
keywords: index, follow
---

# CVE-2017-1000600

Publication date 6 September 2018

Last updated 26 August 2025

---

Ubuntu priority

**Low**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**8.8 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2017-1000600?format=md#impact-score)

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## Description

WordPress version <4.9 contains a CWE-20 Input Validation vulnerability in
thumbnail processing that can result in remote code execution. This attack
appears to be exploitable via thumbnail upload by an authenticated user and
may require additional plugins in order to be exploited however this has
not been confirmed at this time. This issue appears to have been partially,
but not completely fixed in WordPress 4.9

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| wordpress | 26.04 LTS resolute | Not affected |
| 25.10 questing | Not affected |
| 25.04 plucky | Not affected |
| 24.10 oracular | Not affected |
| 24.04 LTS noble | Not affected |
| 23.10 mantic | Not affected |
| 23.04 lunar | Not affected |
| 22.10 kinetic | Not affected |
| 22.04 LTS jammy | Not affected |
| 21.10 impish | Not affected |
| 21.04 hirsute | Not affected |
| 20.10 groovy | Not affected |
| 20.04 LTS focal | Not affected |
| 19.10 eoan | Not affected |
| 19.04 disco | Not affected |
| 18.10 cosmic | Not affected |
| 18.04 LTS bionic | Not affected |
| 16.04 LTS xenial | Vulnerable |
| 14.04 LTS trusty | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

8.8 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | Low |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 8.8 · High |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000600)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2017-1000600)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2017-1000600)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2017-1000600)

### Other references

* <https://www.theregister.co.uk/2018/08/20/php_unserialisation_wordpress_vuln/>
* <https://youtu.be/GePBmsNJw6Y?t=1763>
* <https://www.cve.org/CVERecord?id=CVE-2017-1000600>