CVE-2026-1648

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

CVSS 7.2 HIGHEPSS 0.4%CWE-918

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.2EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

21 Mar 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Affected products

qrolic · Performance Monitor

References

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