CVE-2022-46818: 
WordPress vulnerability analysis and mitigation

The CVE-2022-46818 is a SQL Injection vulnerability discovered in the WordPress plugin 'Email posts to subscribers' affecting versions up to 6.2. The vulnerability was discovered by Le Ngoc Anh and publicly disclosed on April 18, 2023. This security flaw allows unauthenticated users to perform SQL injection attacks against affected WordPress installations (Patchstack, WPScan).

The vulnerability stems from improper neutralization of special elements used in SQL commands (CWE-89). The plugin fails to properly sanitize and escape a parameter before using it in a SQL statement. The vulnerability has received a CVSS v3.1 base score of 9.8 (CRITICAL) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating its severe nature (NVD).

The SQL injection vulnerability allows unauthenticated attackers to interact directly with the database, potentially leading to unauthorized access to sensitive information, modification of database contents, and possible complete compromise of the affected WordPress installation (Patchstack).

As of the vulnerability disclosure, no official fix is available for this security issue. Patchstack has issued a virtual patch to mitigate the vulnerability by blocking potential attacks until an official fix becomes available (Patchstack).