CVE-2025-65518: WebPros Plesk Obsidian

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

Plesk Obsidian versions 8.0.1 through 18.0.73 are vulnerable to a Denial of Service (DoS) condition. The vulnerability exists in the get_password.php endpoint, where a crafted request containing a malicious payload can cause the affected web interface to continuously reload, rendering the service unavailable to legitimate users. An attacker can exploit this issue remotely without authentication, resulting in a persistent availability impact on the affected Plesk Obsidian instance.

Affected products

• WebPros Plesk Obsidian: from 8.0.1, before 18.0.73 (fixed in 18.0.73)

Published 2026-01-08. Last modified 2026-07-15.