CVE-2026-16536CWE-918ssrf

CVE-2026-16536

Medium · published August 4, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
24.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00323 · 24.1th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-08-04T11:16Z
References (1)
https://wpscan.com/vulnerability/effa5549-ecfa-45ba-9044-7345d674c2ca/ · [email protected]
EPSS history
Timeline
  • 04 AUG 06:00Z
    Simple Google Calendar Outlook Events Widget < 3.1.0 - Unauthenticated SSRF via calendar_id
    cvelistv5