CVE-2023-5561 - CVE House
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Status published Unknown CVE-2023-5561

WordPress < 6.3.2 - Unauthenticated Post Author Email Disclosure

Vulnerability 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

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Marc Montpas
  • WPScan

References

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Affected Vendor

Affected Software

WordPress
Vulnerable Versions:
6.3.0, 6.2.0, 6.1.0, 6.0.0, 5.9.0, 5.8.0, 5.7.0, 5.6.0, 5.5.0, 5.4.0, 5.3.0, 5.2.0, 5.0.0, 4.9.0, 4.8.0, 4.7.0

Timeline

Official Publish: October 16th, 2023
Last Modified: April 23rd, 2025
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.