CVE-2026-16536 - Vulnerability Details - OpenCVE

The Simple Google Calendar Outlook Events Widget WordPress plugin before 3.1.0 does not validate a user-supplied URL before performing a server-side request, allowing unauthenticated attackers to perform Server-Side Request Forgery attacks and, in some cases, read the response of the internal request.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00137.

Exploitation none

Automatable yes

Technical Impact partial

No data.

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products

References

Link	Providers
https://wpscan.com/vulnerability/effa5549-ecfa-45ba-9044-7345d674c2ca/

History

Tue, 04 Aug 2026 15:30:00 +0000

Type	Values Removed	Values Added
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'}`

Tue, 04 Aug 2026 09:45:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-200 CWE-918

Tue, 04 Aug 2026 06:30:00 +0000

Type	Values Removed	Values Added
Description		The Simple Google Calendar Outlook Events Widget WordPress plugin before 3.1.0 does not validate a user-supplied URL before performing a server-side request, allowing unauthenticated attackers to perform Server-Side Request Forgery attacks and, in some cases, read the response of the internal request.
Title		Simple Google Calendar Outlook Events Widget < 3.1.0 - Unauthenticated SSRF via calendar_id
References		https://wpscan.com/vulnerability/effa5549-ecfa-45ba-9044-7345d674c2ca/

MITRE

Status: PUBLISHED

Assigner: WPScan

Published: 2026-08-04T06:00:08.977Z

Updated: 2026-08-04T14:37:05.229Z

Reserved: 2026-07-22T09:33:33.781Z

Link: CVE-2026-16536

Vulnrichment

Updated: 2026-08-04T14:36:42.829Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-08-04T09:30:06Z

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