CVE-2026-70553

EIP tracks 1 public exploit for CVE-2026-70553. PoCs published by woshidashabi1126.

AI-analyzed exploit summary This PoC exploits an unauthenticated remote code execution vulnerability in MaxSite CMS via PHP code injection into the `db_dbprefix` parameter during the installation process. The injected code persists in `database.php` and executes on every request, but only works if database tables do not exist (fresh installation).

MaxSite CMS contains a remote code execution vulnerability that allows unauthenticated attackers to inject arbitrary PHP code into the application configuration file by submitting crafted POST requests to the install endpoint after installation is complete. Attackers can supply a malicious db_dbprefix value containing a single quote to break out of a PHP string literal in application/config/database.php, appending attacker-controlled PHP statements that are executed by the web server on every subsequent request, resulting in persistent unauthenticated remote code execution as the web-server process user.