CVE-2026-73849
CriticalCVSS 9.8Summary
Emlog version 2.6.26 and earlier allows unauthenticated reinstallation (action=reinstall) in install.php, which skips the already-installed check. An attacker can overwrite config.php and create a new administrator account.
Risk Assessment
An attacker can take over the system by changing database configuration and creating an administrator account.
Recommendation
No fix is available; consider restricting access to install.php or applying other mitigations.
Original NVD description (English source)
Emlog is an open source website building system. In 2.6.26 and earlier, install.php accepts action=reinstall without authentication and deliberately skips the already-installed check because the guard runs only when $act != 'reinstall'. A remote attacker can submit hostname, dbuser, dbpasswd, dbname, dbprefix, username, password, and email values to cause file_put_contents('config.php', $config) to overwrite the configuration with attacker-controlled database settings and create a new administrator account. No fixed version is available as of this review.