CVE Catalog

CVE-2026-16536

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.19%

9th percentile - higher than 9% of all known CVEs

Summary

The Simple Google Calendar Outlook Events Widget WordPress plugin before version 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.

Risk Assessment

An attacker can use the server to scan the internal network, read sensitive data from internal services, or launch attacks on other systems, potentially leading to infrastructure compromise.

Recommendation

Update the plugin to version 3.1.0 or later. Restrict access to the functionality and apply URL filtering to prevent SSRF.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS