Understanding the DoLogin Security IP Spoofing Vulnerability
The DoLogin Security plugin for WordPress, specifically versions older than 3.7, had a significant security flaw. This vulnerability, known as IP spoofing, allowed malicious actors to trick the plugin into believing their network requests originated from a different, trusted IP address. This could potentially bypass certain security checks and access controls that rely on accurate IP address identification.
The core of the problem lay in how the plugin retrieved the IP address of incoming requests. It relied on HTTP headers like ‘X-Forwarded-For’, which are easily manipulated by an attacker. When these headers are not properly validated, a hacker can simply provide a false IP address, making their activities appear legitimate to the vulnerable plugin.
CVE Details
Product: DoLogin Security WordPress Plugin
CVE ID: CVE-2023-4631
Published: September 25, 2023
Last Modified: March 3, 2026
Severity: Medium (CVSS: 5.3)
Affected Products
This vulnerability impacts all versions of the DoLogin Security WordPress plugin released before version 3.7. If you are running an older version of this plugin, your WordPress site could be at risk.
Current Status
The vulnerability status is “Analyzed”. This means the issue has been thoroughly investigated and understood by security researchers and vendors.
Severity Level
Rated as “Medium” severity with a CVSS score of 5.3, this vulnerability indicates a notable risk. While not critical, it could lead to unauthorized actions if exploited. Attackers might use this flaw to bypass security logs, perform brute-force attacks more discreetly, or interfere with IP-based access restrictions, potentially compromising the integrity of your WordPress installation.
Possible Solutions
The good news is that a fix is available. To protect your WordPress website from CVE-2023-4631, it is crucial to update your DoLogin Security plugin immediately.
- Update to Version 3.7 or Newer: Ensure your DoLogin Security plugin is updated to version 3.7 or any subsequent release. These versions contain the necessary patches to correctly handle IP address retrieval and prevent spoofing.
Regularly updating all your WordPress plugins, themes, and core software is a fundamental security practice. This simple step can significantly reduce your exposure to known vulnerabilities.
References
https://wpscan.com/vulnerability/28613fc7-1400-4553-bcc3-24df1cee418e
