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CVE-2017-5487

77
FAUCET Score

CVE-2017-5487 is a vulnerability in WordPress 4.7, specifically within the REST API's user controller, that allows remote attackers to enumerate post authors. This information disclosure flaw, rated Medium severity (CVSS 5.3), permits unauthorized access to sensitive user data via a crafted wp-json/wp/v2/users request. While not listed on the KEV catalog, an exploit (EDB-41497) exists for username enumeration, and its high EPSS score indicates a significant likelihood of exploitation. Despite this, there is no evidence of active exploitation, Metasploit or Nuclei modules, or notable community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.7CPE matchmatch criteria
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
87.09%
Probability of exploitation in next 30 days
EPSS Percentile
99.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-41497 · Mar 3, 2017
This CVE's current EPSS score of 0.8710 is in the 100th percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

codex.wordpress.org / Version_4.7.1
Release NotesVendor Advisory
github.com / WordPress/WordPress/commit/daf358983cc1ce0c77bf6d2de2ebbb43df2add60
Patch
wordpress.org / news/2017/01/wordpress-4-7-1-security-and-maintenance-release
Vendor Advisory
wpvulndb.com / vulnerabilities/8715
exploit-db.com / exploits/41497
wordfence.com / blog/2016/12/wordfence-blocks-username-harvesting-via-new-rest-api-wp-4-7
Third Party Advisory
openwall.com / lists/oss-security/2017/01/14/6
Mailing ListThird Party Advisory
securityfocus.com / bid/95391
securitytracker.com / id/1037591