CVE-2023-23676: 
WordPress vulnerability analysis and mitigation

A Stored Cross-Site Scripting (XSS) vulnerability was discovered in the WordPress File Gallery plugin versions 1.8.5.3 and below, developed by Bruno "Aesqe" Babic. The vulnerability was reported on January 17, 2023, and affects users with contributor-level privileges or higher (Patchstack).

The vulnerability has been assigned a CVSS v3.1 base score of 6.5 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L. This indicates that the vulnerability requires network access, low attack complexity, low privileges, and user interaction to exploit. The scope is changed, with low impacts on confidentiality, integrity, and availability (NVD).

The vulnerability could allow a malicious actor to inject malicious scripts, including redirects, advertisements, and other HTML payloads into the website. These injected scripts would be executed when guests visit the affected site (Patchstack).

The vulnerability has been fixed in version 1.8.5.4 of the File Gallery plugin. Users are advised to update to this version or later to remove the vulnerability. Patchstack users can enable auto-update for vulnerable plugins as an additional security measure (Patchstack).