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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 87.3%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.0
- 5.3 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 87.30% probability · 100th percentile
- Public exploits
- 1 in Exploit-DB · first 3 March 2017
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- wordpress/wordpress
- Source
- cve@mitre.org
EPSS moved from 77.0% on 21 September 2026 to 87.3% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://www.openwall.com/lists/oss-security/2017/01/14/6Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/95391
- http://www.securitytracker.com/id/1037591
- https://codex.wordpress.org/Version_4.7.1Release Notes, Vendor Advisory
- https://github.com/WordPress/WordPress/commit/daf358983cc1ce0c77bf6d2de2ebbb43df2add60Patch
- https://wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/Vendor Advisory
- 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/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2017/01/14/6Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/95391
- http://www.securitytracker.com/id/1037591
- https://codex.wordpress.org/Version_4.7.1Release Notes, Vendor Advisory
- https://github.com/WordPress/WordPress/commit/daf358983cc1ce0c77bf6d2de2ebbb43df2add60Patch
- https://wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/Vendor Advisory
- 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/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.