What is CVE-2026-16536?

CVE-2026-16536 is a medium-severity vulnerability in Simple Google Calendar Outlook Events Widget, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2026-08-04.

How severe is CVE-2026-16536?

Medium severity. CVSS v3 base score is 5.3 out of 10.

SSRF in Simple Google Calendar Outlook Events Widget

CVE-2026-16536

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…

Vulnerability class: SSRF (Server-Side Request Forgery)

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Unknown Simple Google Calendar Outlook Events Widget — versions 0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-16536?: CVE-2026-16536 is a medium-severity vulnerability in Simple Google Calendar Outlook Events Widget, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2026-08-04.
How severe is CVE-2026-16536?: Medium severity. CVSS v3 base score is 5.3 out of 10.