CVE-2023-6830: 
WordPress vulnerability analysis and mitigation

The Formidable Forms plugin for WordPress (CVE-2023-6830) was discovered to contain an HTML injection vulnerability affecting versions up to and including 6.7. The vulnerability was disclosed on January 9, 2024, and impacts the WordPress plugin developed by Strategy11. This security issue specifically affects the form handling functionality of the plugin (NVD).

The vulnerability is classified as an Improper Neutralization of Input During Web Page Generation (CWE-79). It has received a CVSS v3.1 base score of 6.1 (Medium) from NIST with a vector string of CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N, while Wordfence assessed it with a slightly higher score of 6.5 (Medium) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N (NVD).

When exploited, this vulnerability allows unauthenticated users to inject arbitrary HTML code into form fields. The injected HTML code is rendered when an administrator views the form data in the Entries View Page, which can lead to admin area defacement or potential redirection to malicious websites (NVD).

Users are advised to update their Formidable Forms plugin to a version newer than 6.7 to address this vulnerability. The issue has been patched in subsequent releases (Wordfence Report).