CVE-2026-1648
Severity CVSS v4.0:
Pending analysis
Type:
CWE-918
Server-Side Request Forgery (SSRF)
Publication date:
21/03/2026
Last modified:
23/03/2026
Description
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.
Impact
Base Score 3.x
7.20
Severity 3.x
HIGH
References to Advisories, Solutions, and Tools
- https://github.com/assetnote/blind-ssrf-chains
- https://plugins.trac.wordpress.org/browser/performance-monitor/tags/1.0.6/admin/class-curl.php#L50
- https://plugins.trac.wordpress.org/browser/performance-monitor/tags/1.0.6/includes/class-rest-callback.php#L168
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c8f42f17-bce2-421e-9031-bfa0f8c26b2a?source=cve
- https://github.com/assetnote/blind-ssrf-chains