CVE-2026-6555

The ProSolution WP Client plugin for WordPress is vulnerable to Arbitrary File Upload in versions up to, and including, 2.0.0. This is due to an array validation mismatch where only the first file in the upload array undergoes extension and MIME type validation, while all files are processed and uploaded to a web-accessible directory. This makes it possible for unauthenticated attackers to upload malicious PHP files and achieve remote code execution by sending a valid first file followed by a malicious file.

CWE: CWE-434 ／ 公開 2026年5月20日 ／ 最終更新 2026年7月24日

ProSolution WP Client を 2.0.1 以降に更新してください。これで本脆弱性は解消します。

ProSolution WP Client の他の脆弱性を見る →