Critical · published June 2, 2025
CVSS calls it critical at 9.9. It is confirmed in active exploitation. It sits in the 99.9th percentile for exploit probability.
🚨 Authenticated users can execute remote code with a simple crafted URL in Roundcube Webmail, leading to a serious security breach! 🔥 Think of this as a restaurant where a patron can place a secret order that no one checks — the chef cooks up anything they ask for without verifying the request. This vulnerability allows malicious users to whip up their own commands within your server, and that’s a recipe for disaster! An attacker could leverage this vulnerability to run arbitrary PHP code on your server, potentially gaining full control over sensitive data, user accounts, and even the server itself. This could lead to devastating data breaches or service disruptions. The stakes are high, so don't wait!
Think of this as a restaurant where a patron can place a secret order that no one checks — the chef cooks up anything they ask for without verifying the request. This vulnerability allows malicious users to whip up their own commands within your server, and that’s a recipe for disaster! This critical vulnerability allows for remote code execution via the _from parameter in the upload process at program/actions/settings/upload.php, due to a lack of validation. This opens up a path for PHP Object Deserialization, enabling attackers to manipulate server behavior.
An attacker could leverage this vulnerability to run arbitrary PHP code on your server, potentially gaining full control over sensitive data, user accounts, and even the server itself. This could lead to devastating data breaches or service disruptions. The stakes are high, so don't wait! Immediately upgrade Roundcube Webmail to versions 1.5.10 or 1.6.11 and ensure that parameter validation is properly implemented in any custom scripts. Regularly audit your web applications to prevent such issues from cropping up in the future! You've got this! With these steps, you'll tighten your defenses and protect your users. 🛡️