CVE-2026-65642
HIGH
8.6
CVSS Score
Published: August 26, 2026 at 09:21 PM UTC
Updated: September 3, 2026 at 05:14 PM UTC
1 product affected across 1 vendorPlesk Obsidian
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Severity
HIGH8.6
Exploit prediction
EPSS 0.5%
SSVC
No known exploit
Description
Insecure direct object reference in Plesk 18.0.79.7 and earlier or 18.0.80 through 18.0.80.3, allows remote authenticated users to read and modify other customers' databases.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Affected range stops below 18.0.80.4, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
SSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
8.6HIGHhackerone
Vector?
Quick Info
StatusAWAITING ANALYSIS
CWE
CWE-639
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