In WordPress 4.9.7, plugins uploaded via the admin area are not verified as being ZIP files. This allows for PHP files to be uploaded. Once a PHP file is uploaded, the plugin extraction fails, but the PHP file remains in a predictable wp-content/uploads location, allowing for an attacker to then execute the file. This represents a security risk in limited scenarios where an attacker (who does have the required capabilities for plugin uploads) cannot simply place arbitrary PHP code into a valid plugin ZIP file and upload that plugin, because a machine’s wp-content/plugins directory permissions were set up to block all new plugins.
CWE-434
CVE-2018-1342
A Vulnerability exists on Admin Console where an attacker can upload files to the Admin Console server, and potentially execute them. This impacts NetIQ Access Manager versions 4.3 and 4.4 as well as the Administrative console.
CVE-2018-13021
An issue was discovered in HongCMS 3.0.0. There is an Arbitrary Script File Upload issue that can result in PHP code execution via the admin/index.php/template/upload URI.
CVE-2018-13024
Metinfo v6.0.0 allows remote attackers to write code into a .php file, and execute that code, via the module parameter to admin/column/save.php in an editor upload action.
CVE-2018-13038
OpenSID 18.06-pasca has an Unrestricted File Upload vulnerability via an Attachment Document in the article feature. This vulnerability leads to uploading arbitrary PHP code via a .php filename with the application/pdf Content-Type.
CVE-2018-12940
Unrestricted file upload vulnerability in “op/op.UploadChunks.php” in SeedDMS (formerly LetoDMS and MyDMS) before 5.1.8 allows remote attackers to execute arbitrary code by uploading a file with an executable extension specified by the “qqfile” parameter. This allows an authenticated attacker to upload a malicious file containing PHP code to execute operating system commands to the web root of the application.