---
title: CVE-2017-5487
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-2017-5487
---

# CVE-2017-5487

Publication date 15 January 2017

Last updated 25 August 2025

---

Ubuntu priority

**Low**

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

## Cvss 3 Severity Score

**5.3 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2017-5487#impact-score)

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## Description

wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php in the
REST API implementation in WordPress 4.7 before 4.7.1 does not properly
restrict listings of post authors, which allows remote attackers to obtain
sensitive information via a wp-json/wp/v2/users request.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2017-5487#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| wordpress | 18.10 cosmic | Not affected |
| 18.04 LTS bionic | Not affected |
| 17.10 artful | Not affected |
| 17.04 zesty | Not affected |
| 16.10 yakkety | Ignored end of life |
| 16.04 LTS xenial | Not affected |
| 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)

## Notes

---

### [msalvatore](https://launchpad.net/~msalvatore)

Vulnerable code introduced in v4.7

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.3 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.3 · Medium |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5487)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2017-5487)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2017-5487)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2017-5487)

### Other references

* <http://www.openwall.com/lists/oss-security/2017/01/14/1>
* <https://wpvulndb.com/vulnerabilities/8715>
* <https://github.com/WordPress/WordPress/commit/daf358983cc1ce0c77bf6d2de2ebbb43df2add60>
* <http://www.openwall.com/lists/oss-security/2017/01/14/6>
* <https://codex.wordpress.org/Version_4.7.1>
* <https://wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/>
* <https://www.wordfence.com/blog/2016/12/wordfence-blocks-username-harvesting-via-new-rest-api-wp-4-7/>
* <https://www.cve.org/CVERecord?id=CVE-2017-5487>