CVE-2023-36678: 
WordPress vulnerability analysis and mitigation

A Stored Cross-Site Scripting (XSS) vulnerability was discovered in the WP Content Copy Protection & No Right Click WordPress plugin versions 3.5.5 and below. The vulnerability was identified on July 2, 2023, and publicly disclosed on July 4, 2023, by researcher LEE SE HYOUNG. This security issue affects administrators and users with high privileges in WordPress installations (Patchstack).

The vulnerability stems from improper sanitization and escaping of certain plugin settings, which could enable high-privilege users such as administrators to perform Stored Cross-Site Scripting attacks, even in environments where the unfiltered_html capability is disabled, such as in multisite setups. The vulnerability has been assigned a CVSS v3.1 base score of 4.8 (Medium) by NVD with the vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N, while Patchstack assigned it a score of 5.9 (Medium). The vulnerability is classified under CWE-79 (Improper Neutralization of Input During Web Page Generation) (NVD, WPScan).

The vulnerability could allow malicious actors to inject harmful scripts, including redirects and advertisements, as well as other HTML payloads into the website. These injected scripts would be executed when visitors access the affected site. The impact is considered to have low severity due to the requirement of high-privilege user access for exploitation (Patchstack).

The vulnerability has been patched in version 3.5.6 of the WP Content Copy Protection & No Right Click plugin. Users are advised to update to version 3.5.6 or later to remediate the vulnerability. Patchstack users have the option to enable auto-updates for vulnerable plugins as an additional security measure (Patchstack).