CVE-2021-24134

Name of the Vulnerable Software and Affected Versions: Constant Contact Forms WordPress plugin versions prior to 1.8.8

Description: The issue is caused by unvalidated input and a lack of output encoding in the Constant Contact Forms WordPress plugin, leading to multiple Stored Cross-Site Scripting vulnerabilities. This allows a high-privileged user, such as an Editor or higher, to inject arbitrary JavaScript code or HTML in posts where the malicious form is embedded.

Recommendations: For versions prior to 1.8.8, update to version 1.8.8 or later to resolve the issue. As a temporary workaround, consider restricting the use of the Constant Contact Forms WordPress plugin until a patch is applied, or limit the privileges of users who can embed forms to prevent potential exploitation.