Gophish through 0.12.1 fails to enforce account lockout and password change requirements in the API authentication middleware. Attackers with valid API keys can bypass these security controls and retain full API access even when their account is locked or password change is required.

Gophish through 0.12.1 contains a denial of service vulnerability that allows authenticated users with the User role to exhaust server memory by uploading a crafted Office document as an email template attachment. The ApplyTemplate() function in models/attachment.go processes Office documents as ZIP archives and calls ioutil.ReadAll() on each contained file entry without enforcing size restrictions on uncompressed content, allowing a zip bomb payload to expand to several gigabytes in memory and cause the process to be terminated by the operating system.

Cross-Site Scripting stored vulnerability in Gophish affecting version 0.12.1. This vulnerability could allow an attacker to store a malicious JavaScript payload in the campaign menu and trigger the payload when the campaign is removed from the menu.