CVE-2026-1648CWE-918

Performance Monitor <= 1.0.6 - Unauthenticated Server-Side Request Forgery via 'url' Parameter

High · published March 21, 2026

CVSS v3.1
7.2
EPSS
0%
Percentile
31.7
In the wild
Unconfirmed
What it is

The Performance Monitor plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 1.0.6. This is due to insufficient validation of the 'url' parameter in the '/wp-json/performance-monitor/v1/curl_data' REST API endpoint. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations, including internal services, via the Gopher protocol and other dangerous protocols. This can be exploited to achieve Remote Code Execution by chaining with services like Redis.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00388 · 31.7th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-03-21T03:27Z
EPSS history
Timeline
  • 21 MAR 03:27Z
    Performance Monitor <= 1.0.6 - Unauthenticated Server-Side Request Forgery via 'url' Parameter
    cvelistv5