Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/assetnote/blind-ssrf-chains
- https://plugins.trac.wordpress.org/browser/performance-monitor/tags/1.0.6/admin/
- https://plugins.trac.wordpress.org/browser/performance-monitor/tags/1.0.6/includ
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c8f42f17-bce2-421e-903
- https://github.com/assetnote/blind-ssrf-chains
FAQ
What is CVE-2026-1648?
CVE-2026-1648 is a vulnerability with a CVSS score of 7.2 (HIGH). 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 ...
How severe is CVE-2026-1648?
CVE-2026-1648 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-1648?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.