CVE-2018-3810 : What You Need to Know
Learn about CVE-2018-3810 affecting Oturia Smart Google Code Inserter plugin for WordPress. Find out how unauthenticated attackers can insert malicious code and steps to mitigate the risk.
The Oturia Smart Google Code Inserter plugin before version 3.5 for WordPress is vulnerable to an authentication bypass issue that allows unauthenticated attackers to insert malicious JavaScript or HTML code.
Understanding CVE-2018-3810
This CVE entry describes a security vulnerability in the Oturia Smart Google Code Inserter plugin for WordPress that could be exploited by unauthenticated users.
What is CVE-2018-3810?
The vulnerability in the plugin allows attackers without authentication to insert JavaScript or HTML code of their choice, which will then be executed on all pages served by WordPress.
The Impact of CVE-2018-3810
The flaw in the saveGoogleCode() function within the smartgooglecode.php file enables any unauthenticated user to update the inserted code successfully, posing a risk of executing malicious scripts on WordPress pages.
Technical Details of CVE-2018-3810
The technical details of the CVE-2018-3810 vulnerability are as follows:
Vulnerability Description
The authentication bypass vulnerability in the Oturia Smart Google Code Inserter plugin allows unauthenticated attackers to insert arbitrary JavaScript or HTML code that runs on all WordPress pages.
Affected Systems and Versions
- Product: Oturia Smart Google Code Inserter plugin
- Vendor: Oturia
- Versions affected: Prior to version 3.5
Exploitation Mechanism
The saveGoogleCode() function in smartgooglecode.php does not verify if the current request is made by an authorized user, enabling any unauthenticated user to update the inserted code.
Mitigation and Prevention
To address CVE-2018-3810, follow these mitigation steps:
Immediate Steps to Take
- Disable or remove the vulnerable plugin from your WordPress installation.
- Regularly monitor for any unauthorized code changes on your WordPress pages.
Long-Term Security Practices
- Keep WordPress and all plugins up to date to prevent known vulnerabilities.
- Implement strong authentication mechanisms to restrict unauthorized access to WordPress.
Patching and Updates
- Update the Oturia Smart Google Code Inserter plugin to version 3.5 or newer to fix the authentication bypass vulnerability.