WordPress Simple Custom CSS Plugin Full Path Disclosure Scanner

WordPress Simple Custom CSS Plugin is widely used by website administrators and developers to add custom styling to WordPress websites. This plugin offers an easy way to apply CSS without altering the theme files directly. It is predominantly used by WordPress site owners to personalize and enhance the aesthetic appearance of their websites. The plugin is popular due to its simplicity and convenience for non-technical users who want to make style changes. This makes it a preferred choice for many who manage WordPress sites around the world. As it interacts with the core WordPress installation, ensuring its security is crucial to protect the site.

A Full Path Disclosure vulnerability occurs when an application discloses the full path of the application or its files on the host server. This type of vulnerability can expose details about the directory structure and file locations. Attackers can exploit this information to craft targeted attacks against the website. It can lead to further vulnerabilities such as Local File Inclusion (LFI) or SQL Injection if further combined with other factors. Path disclosure is a critical issue because it provides attackers with important information about the server's environment. Although it might seem minor, it can open doors to more severe attacks.

The vulnerability in the WordPress Simple Custom CSS Plugin is a result of improper handling of internal paths. Specific files, such as 'simple-custom-css.php' and 'admin.php', can be accessed directly, leading to a disclosure of absolute file paths. This issue arises due to insufficient access controls and improper validation mechanisms within the plugin's code. Furthermore, error messages generated by direct access indicate issues and reveal path details. Such disclosures happen when the HTTP responses include error traces or warning messages containing internal file system paths.

Exploitation of this vulnerability may allow attackers to acquire detailed knowledge of the server's directory structure. This information can be used to execute other attacks by identifying critical files or directories on the server. It can also aid in performing further reconnaissance that may lead to access to sensitive data. Additionally, knowing the internal paths can help an attacker in crafting more powerful attacks, such as remote code execution or privilege escalation. Therefore, fixing these issues promptly is crucial to maintain the security of the website.

REFERENCES

• https://wordpress.org/plugins/simple-custom-css/