Description
The Events Calendar WordPress plugin before 6.17.5 does not check the post status of linked records before embedding their stored details into a public REST API response, allowing unauthenticated users to read the contents of records that have never been published.
Published: 2026-09-23
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Unauthenticated Sensitive Data Exposure
Action: Apply Patch
AI Analysis

Impact

The vulnerability is found in the The Events Calendar WordPress plugin before version 6.17.5. The plugin fails to validate the post status of linked venue and organizer records before including their details in the public REST API response. Unauthenticated users can request the API and obtain data that should remain unpublished, exposing private information.

Affected Systems

Affected products are the The Events Calendar plugin for WordPress. Versions in the 4.5 to 6.17.4.1 range are impacted. Any installation of these versions that enables the plugin's REST API will be susceptible.

Risk and Exploitability

The CVSS score of 5.3 reflects moderate severity. EPSS information is not available, so exploitation likelihood is unclear, but the API is publicly accessible. The issue is not listed in the KEV catalog, yet it permits data disclosure without authentication. A simple GET request to the REST endpoint suffices, allowing attackers to harvest private venue and organizer data and compromise privacy or business confidentiality.

Generated by OpenCVE AI on September 23, 2026 at 14:27 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update The Events Calendar plugin to version 6.17.5 or newer.
  • If an immediate update is not possible, disable the REST API endpoints exposed by the plugin or hard‑enforce access restrictions via network ACLs.
  • Consider removing unpublished venue and organizer information from the database until a patch is applied.

Generated by OpenCVE AI on September 23, 2026 at 14:27 UTC.

Tracking

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Advisories

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History

Wed, 23 Sep 2026 11:45:00 +0000

Type Values Removed Values Added
Description The Events Calendar WordPress plugin before 6.17.5 does not check the post status of linked records before embedding their stored details into a public REST API response, allowing unauthenticated users to read the contents of records that have never been published.
Title The Events Calendar 4.5 - 6.17.4.1 - Unauthenticated Non-Public Venue and Organizer Disclosure via REST API
Weaknesses CWE-200
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-09-23T10:56:51.129Z

Reserved: 2026-09-02T08:41:17.704Z

Link: CVE-2026-84741

cve-icon Vulnrichment

Updated: 2026-09-23T10:36:26.607Z

cve-icon NVD

Status : Received

Published: 2026-09-23T06:17:03.383

Modified: 2026-09-23T11:17:13.370

Link: CVE-2026-84741

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-23T14:30:06Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor