CVE-2017-5487
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php in the REST API implementation...
CVE-2017-5487 is a medium vulnerability (CVSS 5.3) in Wordpress, published January 15, 2017. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 87.3%, the 99th percentile. Fixed in wordpress 4.7.1+dfsg-1.
- Severity
- 5.3 MediumCVSS 3.0, NVD
- Exploit chance
- 87.3%EPSS, 99th percentile
- Exploitation
- None known10 public exploits
- Fixed in
4.7.1+dfsg-1wordpress +2 more
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
Affected products
Affected packages
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | WordPress Core < 4.7.1 - Username Enumeration | 2017-03-03 |
| PoC in GitHub | teambugsbunny/wpUsersScan | 2017-10-22 |
| PoC in GitHub | R3K1NG/wpUsersScan | 2018-02-17 |
| PoC in GitHub | GeunSam2/CVE-2017-5487 | 2019-06-10 |
| PoC in GitHub | patilkr/wp-CVE-2017-5487-exploit | 2020-04-26 |
| PoC in GitHub | zkhalidul/GrabberWP-CVE-2017-5487 | 2021-11-04 |
| PoC in GitHub | SeasonLeague/CVE-2017-5487 | 2023-01-29 |
| PoC in GitHub | dream434/CVE-2017-5487 | 2024-05-27 |
| PoC in GitHub | tpdlshdmlrkfmcla/cve-2017-5487 | 2025-03-08 |
| PoC in GitHub | ndr-repo/CVE-2017-5487 | 2025-05-10 |
What each source reports
NVD Score used
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.
- Record
CVE-2017-5487- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CVE ListNo score
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.
- Record
CVE-2017-5487- Updated
- 2026-11-02
EUVDEUVD-2017-14591No score
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.
- Record
EUVD-2017-14591- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-94q7-f538-38mf
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php in the REST API implementation...
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.
- Record
GHSA-94q7-f538-38mf- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2017-5487- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2017-5487
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.
- Record
DEBIAN-CVE-2017-5487- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| exploits, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
exploit-db.com/exploits/41497
wpvulndb.com/vulnerabilities/8715
codex.wordpress.org/Version_4.7.1
github.com/WordPress/WordPress/commit/daf358983cc1ce0c77bf6d2de2ebbb43df2add60
openwall.com/lists/oss-security/2017/01/14/6
wordfence.com/blog/2016/12/wordfence-blocks-username-harvesting-via-new-rest-api-wp-4-7