CVE-2023-52185

Step 1: Vulnerability Identification: The attacker identifies a WordPress site using the Everest Backup plugin within the vulnerable version range (n/a through 2.1.9).

Step 2: Information Gathering: The attacker may attempt to gather information about the site's configuration and backup schedule.

Step 3: Exploitation Attempt: The attacker crafts a request to access backup files or trigger a backup operation. This request may exploit a flaw in the plugin's access control or input validation.

Step 4: Data Extraction: If successful, the attacker gains access to the backup files. These files may contain sensitive information, such as database credentials, API keys, and other configuration data.

Step 5: Privilege Escalation/Lateral Movement: The attacker uses the extracted information to gain further access to the system, potentially leading to complete site compromise or lateral movement within the network.

The vulnerability stems from a flaw in the Everest Backup plugin's handling of data during backup operations. The plugin likely fails to properly sanitize or restrict access to sensitive information, such as database credentials, API keys, or other configuration settings, within the backup files. This could be due to insecure storage practices, insufficient access controls, or a lack of proper input validation. The root cause is likely a combination of these factors, leading to the exposure of sensitive data to unauthorized users. The specific function or logic flaw is likely related to the way the plugin handles the creation and storage of backup archives, potentially allowing attackers to download or access these archives without proper authentication or authorization. This could be due to a lack of proper access control checks or insufficient validation of user input when requesting backup files.