Cross-site scripting (XSS) vulnerability in blog/search.aspx in BlogEngine.NET allows remote attackers to inject arbitrary web script or HTML via the q parameter.

BlogEngine.NET 2.8.0.0 and earlier allows remote attackers to read usernames and password hashes via a request for the sioc.axd file.

BlogEngine.NET 3.3.7 and earlier allows XXE via an apml file to syndication.axd.

BlogEngine.NET 3.3.7.0 allows a Client Side URL Redirect via the ReturnUrl parameter, related to BlogEngine/BlogEngine.Core/Services/Security/Security.cs, login.aspx, and register.aspx.

BlogEngine.NET 3.3.7.0 and earlier allows Directory Traversal and Remote Code Execution because file creation is mishandled, related to /api/upload and BlogEngine.NET/AppCode/Api/UploadController.cs. NOTE: this issue exists because of an incomplete fix for CVE-2019-6714.

BlogEngine.NET 3.3.7.0 and earlier allows XML External Entity Blind Injection, related to pingback.axd and BlogEngine.Core/Web/HttpHandlers/PingbackHandler.cs.

BlogEngine.NET 3.3.7.0 allows /api/filemanager Directory Traversal via the path parameter.