What’s Vulnerable › Vulnerabilities

CVE-2026-67397

• Severity: high (CVSS 8.5 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-04 · updated 2026-09-08
• Weakness: CWE-22

Description

Path traversal in Plesk 18.0.79.9 and earlier and 18.0.80 through 18.0.80.5 allows local users to execute arbitrary code as root.

Affected products

• WebPros Plesk: before 18.0.79.9; from 18.0.80 before 18.0.80.5 — fixed in 18.0.79.9, 18.0.80.5

How to fix

Upgrade to a fixed version: WebPros Plesk 18.0.79.9, 18.0.80.5. Check the vendor advisory for mitigations.

References

• https://support.plesk.com/hc/en-us/articles/43070000520855-Vulnerability-CVE-2026-67397-Arbitrary-code-execution-as-root-in-Plesk

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