---
title: "CVE-2016-2222\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-2016-2222?format=md
keywords: index, follow
---

# CVE-2016-2222

Publication date 22 May 2016

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**8.6 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2016-2222?format=md#impact-score)

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## Description

The wp\_http\_validate\_url function in wp-includes/http.php in WordPress
before 4.4.2 allows remote attackers to conduct server-side request forgery
(SSRF) attacks via a zero value in the first octet of an IPv4 address in
the u parameter to wp-admin/press-this.php.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| wordpress | 19.04 disco | Not affected |
| 18.10 cosmic | Not affected |
| 18.04 LTS bionic | Not affected |
| 17.10 artful | Ignored end of life |
| 17.04 zesty | Ignored end of life |
| 16.10 yakkety | Ignored end of life |
| 16.04 LTS xenial | Not affected |
| 15.10 wily | Ignored end of life |
| 14.04 LTS trusty | Not in release |
| 12.04 LTS precise | Ignored end of life |

---

* [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**

8.6 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 8.6 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2222)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2016-2222)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2016-2222)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2016-2222)

### Other references

* <https://wordpress.org/news/2016/02/wordpress-4-4-2-security-and-maintenance-release/>
* <https://core.trac.wordpress.org/changeset/36435>
* <http://www.openwall.com/lists/oss-security/2016/02/04/4>
* <https://www.cve.org/CVERecord?id=CVE-2016-2222>