CVE-2017-5487

Name: CVE-2017-5487
Creator: NVD / NIST
Published: 2017-01-15T02:59:02.797+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 87.30%

Last modified Jun 17, 2026

CVE-2017-5487 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 87.30% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

87.30%

99.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Wordpress	Wordpress	<= 4.7

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

Timeline

Published: Jan 15, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-5487?

How severe is CVE-2017-5487?

Severity scoring for CVE-2017-5487 is pending analysis. The EPSS model estimates a 87.30% probability of exploitation in the next 30 days.

How do I fix CVE-2017-5487?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-5487?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST