CVE-2026-16536 Details
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.
A server-side request forgery (SSRF) vulnerability has been identified in the Simple Google Calendar Outlook Events Widget WordPress plugin, affecting versions prior to 3.1.0. The vulnerability arises because the plugin does not properly validate user-supplied URLs before making server-side requests. This flaw allows unauthenticated attackers to perform SSRF attacks, and in some cases, read the responses from the internal requests.
Users are advised to update the Simple Google Calendar Outlook Events Widget WordPress plugin to version 3.1.0 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Aug 4, 2026CISA-ADP
Assessed Aug 4, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://wpscan.com/vulnerability/effa5549-ecfa-45ba-9044-7345d674c2ca/ | [email protected] | AdvisoryExploitRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-918 | Server-Side Request Forgery (SSRF) | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| Simple Google Calendar Outlook Events Widget | < 3.1.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 4, 2026 | CVE Modified | CISA-ADP |
| Aug 4, 2026 | New CVE Received | [email protected] |