This vulnerability in MailMunch – Grow your Email List (up to version 3.1.6) is a stored cross-site scripting (CWE-79) issue caused by improper input neutralization during web page generation. An attacker with low privileges and requiring user interaction can inject malicious scripts that may execute in the context of other users, potentially leading to partial compromise of confidentiality, integrity, and availability. The CVSS 3.1 vector indicates network attack vector, low attack complexity, low privileges required, user interaction needed, and scope change.

Successful exploitation could allow an attacker to execute arbitrary scripts in the context of other users, potentially leading to information disclosure, modification of data, or disruption of service. The impact affects confidentiality, integrity, and availability but is limited by the requirement for user interaction and low privileges.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution with input handling and consider restricting access or disabling the affected plugin if feasible. Monitor vendor channels for updates.