CVE-2023-5817: 
WordPress vulnerability analysis and mitigation

The Neon text plugin for WordPress contains a Stored Cross-Site Scripting vulnerability (CVE-2023-5817) in all versions up to and including 1.1. The vulnerability exists in the plugin's neontext_box shortcode due to insufficient input sanitization and output escaping on user-supplied attributes, specifically the color parameter (NVD).

The vulnerability is classified as a Stored Cross-Site Scripting (CWE-79) issue with a CVSS v3.1 Base Score of 5.4 (Medium) according to NVD, and 6.4 (Medium) according to Wordfence. The CVSS vector string is CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N, indicating network accessibility, low attack complexity, required privileges, and user interaction (NVD).

When exploited, this vulnerability allows authenticated attackers with contributor-level permissions or higher to inject arbitrary web scripts into pages. These malicious scripts will execute whenever a user accesses an affected page, potentially leading to theft of sensitive information or manipulation of page content (NVD).

The vulnerability requires an authenticated user with contributor-level or higher permissions to exploit. A proof-of-concept exploit has been documented and is publicly available (Google Drive).

A patch has been released to address this vulnerability. Users should update their Neon text plugin to a version newer than 1.1. The fix can be found in the WordPress plugin repository (WordPress Patch).