Webstack
Monthly
Unrestricted file upload in WebStack WordPress theme allows unauthenticated remote code execution. The io_img_upload() function in all versions through 1.2024 lacks file type validation, enabling unauthenticated attackers to upload malicious files (e.g., PHP shells) directly to the server. No public exploit identified at time of analysis, but EPSS score and attack complexity (CVSS AC:L) indicate straightforward exploitation. Critical severity (CVSS 9.8) warranted due to complete system compromise potential with zero authentication barriers.
Unrestricted file upload in WebStack WordPress theme allows unauthenticated remote code execution. The io_img_upload() function in all versions through 1.2024 lacks file type validation, enabling unauthenticated attackers to upload malicious files (e.g., PHP shells) directly to the server. No public exploit identified at time of analysis, but EPSS score and attack complexity (CVSS AC:L) indicate straightforward exploitation. Critical severity (CVSS 9.8) warranted due to complete system compromise potential with zero authentication barriers.