{"cve":"CVE-2023-5561","nvd":{"published":"2023-10-16T20:15:18.073","modified":"2026-06-17T06:48:50.680","status":"Modified","description":"WordPress does not properly restrict which user fields are searchable via the REST API, allowing unauthenticated attackers to discern the email addresses of users who have published public posts on an affected website via an Oracle style attack","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":[],"references":["https://lists.debian.org/debian-lts-announce/2023/11/msg00014.html","https://wpscan.com/blog/email-leak-oracle-vulnerability-addressed-in-wordpress-6-3-2/","https://wpscan.com/vulnerability/19380917-4c27-4095-abf1-eba6f913b441","https://lists.debian.org/debian-lts-announce/2023/11/msg00014.html","https://wpscan.com/blog/email-leak-oracle-vulnerability-addressed-in-wordpress-6-3-2/"],"products":["wordpress:wordpress"],"source":"nvd","synced_at":"2026-10-19T21:39:34.467980132+00:00"},"epss":{"cve":"CVE-2023-5561","score":0.04335,"percentile":0.91201,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}