xmlrpc.php WordPress Attacks (Log Examples + Detection Guide)
See real xmlrpc.php payloads in WordPress access logs. Learn how to detect credential stuffing instantly and block XML-RPC abuse at the server level.
Log Signature Detected: If you're seeing "103.45.67.89 - - [02/Apr/2026:14:32:01 +0000] "POST /xmlrpc...." in your logs, your server may be under a Brute Force attack.
Real Log Example
103.45.67.89 - - [02/Apr/2026:14:32:01 +0000] "POST /xmlrpc.php HTTP/1.1" 200 431 "-" "Mozilla/5.0"
103.45.67.89 - - [02/Apr/2026:14:32:02 +0000] "POST /xmlrpc.php HTTP/1.1" 200 431 "-" "Mozilla/5.0"
103.45.67.89 - - [02/Apr/2026:14:32:03 +0000] "POST /xmlrpc.php HTTP/1.1" 200 431 "-" "Mozilla/5.0"Think your server is currently experiencing a Brute Force?
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What Is a Brute Force?
Security analysts and DevOps teams monitoring infrastructure like Nginx, Apache HTTP Server, Node.js, AWS, and WordPress must be able to quickly identify and triage these malicious log patterns to prevent data breaches.
The xmlrpc.php endpoint in WordPress is commonly targeted by attackers to perform brute-force login attempts or amplify DDoS attacks.
Even though the request returns a 200 status, it may still indicate malicious activity, especially if repeated frequently. This requires a different mitigation strategy than block xmlrpc.php with Nginx config.
Attackers exploit this endpoint because it allows multiple authentication attempts in a single request, making brute-force attacks highly efficient.
How to Detect xmlrpc.php WordPress Attacks (Log Examples + Detection Guide) in Logs
Method Specificity: Normal web browsing relies on GET requests. XML-RPC attacks rely exclusively on POST requests to the /xmlrpc.php file.
False Positives (200 OK): Because XML-RPC handles the authentication logic internally, even failed password attempts will return a 200 OK in the access log. You must look at the frequency of the requests, not the HTTP status code.
IP Source: These attacks rarely come from standard residential ISPs; they usually originate from known datacenter IPs or Tor exit nodes.
Brute Force Attack Detection Checklist
| Pattern | Indicator | Severity |
|---|---|---|
| Repeated POST to /xmlrpc.php | WordPress credential stuffing | Critical |
| 200 OK on xmlrpc.php from same IP | Brute force masked by normal status | High |
| Datacenter or Tor exit node source IP | Non-residential attack origin | High |
How to Defend Against This Threat
Disable XML-RPC if not required using plugins or server configuration.
Use a firewall to block repeated requests to xmlrpc.php.
Enable rate limiting to prevent abuse.
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