CVE-2017-5487
MEDIUMEPSS 100th pctlDescription
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.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Exploit Intelligence
Very high risk: more likely to be exploited than 100% of all known CVEs.
References
- http://www.openwall.com/lists/oss-security/2017/01/14/6
- http://www.securityfocus.com/bid/95391
- http://www.securitytracker.com/id/1037591
- https://codex.wordpress.org/Version_4.7.1
- https://github.com/WordPress/WordPress/commit/daf358983cc1ce0c77bf6d2de2ebbb43df2add60
- https://wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/
- https://wpvulndb.com/vulnerabilities/8715
- https://www.exploit-db.com/exploits/41497/
- https://www.wordfence.com/blog/2016/12/wordfence-blocks-username-harvesting-via-new-rest-api-wp-4-7/
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.