Information disclosure in WordPress
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.873 (99.8th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.770 · newest: 0.873 · change: +0.103
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.exploit-db.com/exploits/41497/ (exploit)
- wpvulndb.com/vulnerabilities/8715
- codex.wordpress.org/Version_4.7.1 (Release Notes, Vendor Advisory)
- github.com/WordPress/WordPress/commit/daf358983cc1ce0c77bf6d2de2ebbb43df2add60 (Patch)
- www.openwall.com/lists/oss-security/2017/01/14/6 (mailing-list, Mailing List, Third Party Advisory)
- www.wordfence.com/blog/2016/12/wordfence-blocks-username-harvesting-via-new-res… (Third Party Advisory)
- www.securitytracker.com/id/1037591 (vdb-entry)
- wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/ (Vendor Advisory)
- www.securityfocus.com/bid/95391 (vdb-entry)
Frequently asked questions
- What is CVE-2017-5487?
- CVE-2017-5487 is a medium-severity vulnerability in WordPress, classified under Information Disclosure. CVSS score: 5.3/10. Published 2017-01-15.
- How severe is CVE-2017-5487?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2017-5487 known to be exploited?
- 57 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.