What’s Vulnerable › Vulnerabilities

CVE-2025-66430

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-12 · updated 2026-10-14
• Weakness: CWE-284

Description

Plesk 18.0 has Incorrect Access Control.

Affected products

• Plesk: from 18.0.70 before 18.0.73.5; from 18.0.74 before 18.0.74.2 — fixed in 18.0.73.5, 18.0.74.2

How to fix

Upgrade to a fixed version: Plesk 18.0.73.5, 18.0.74.2. Check the vendor advisory for mitigations.

References

• https://docs.plesk.com/release-notes/obsidian/whats-new/
• https://support.plesk.com/hc/en-us/articles/36261922405015--CVE-2025-66430-Security-vulnerability-in-Password-Protected-Directories-allows-Plesk-users-to-gain-root-level-access-to-a-Plesk-server

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