ComfyUI-Manager is an extension designed to enhance the usability of ComfyUI. Prior to versions 3.39.2 and 4.0.5, an attacker can inject special characters into HTTP query parameters to add arbitrary configuration values to the config.ini file. This can lead to security setting tampering or modification of application behavior. This issue has been patched in versions 3.39.2 and 4.0.5.

An issue in ComfyUI-Manager prior to version 3.38 allowed remote attackers to potentially manipulate its configuration and critical data. This was due to the application storing its files in an insufficiently protected location that was accessible via the web interface

comfyanonymous/comfyui version v0.2.4 suffers from a non-blind Server-Side Request Forgery (SSRF) vulnerability. This vulnerability can be exploited by combining the REST APIs `POST /internal/models/download` and `GET /view`, allowing attackers to abuse the victim server's credentials to access unauthorized web resources.

A CSRF vulnerability exists in comfyanonymous/comfyui versions up to v0.2.2. This vulnerability allows attackers to host malicious websites that, when visited by authenticated ComfyUI users, can perform arbitrary API requests on behalf of the user. This can be exploited to perform actions such as uploading arbitrary files via the `/upload/image` endpoint. The lack of CSRF protections on API endpoints like `/upload/image`, `/prompt`, and `/history` leaves users vulnerable to unauthorized actions, which could be combined with other vulnerabilities such as stored-XSS to further compromise user sessions.

A stored cross-site scripting (XSS) vulnerability exists in comfyanonymous/comfyui version 0.2.2 and possibly earlier. The vulnerability occurs when an attacker uploads an HTML file containing a malicious XSS payload via the `/api/upload/image` endpoint. The payload is executed when the file is viewed through the `/view` API endpoint, leading to potential execution of arbitrary JavaScript code.