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    CVE-2026-64637

    Improper privilege management in the XML-RPC API of Plesk before 18.0.80, allows an authenticated reseller to obtain an administrative session for the root user account.

    Published:Aug 7, 2026
    Last Modified:Aug 7, 2026
    EPS:Aug 7, 2026
    EPSS Score:
    CVSS Score:9.9

    Affected Products

    Vendor
    Webpros
    Product
    Plesk

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-269 Improper Privilege Management

    Related CVEs

    CVE-2026-68487 (CVSS 9.9) — Path traversal in Plesk's Backup Manager causes arbitrary file write as root by an authenticated customer.…
    CVE-2026-68488 (CVSS 9.9) — A Time-of-check Time-of-use (TOCTOU) race condition leading to insecure symlink following in Plesk causes loca…
    CVE-2026-67397 (CVSS 8.5) — Path traversal in Plesk 18.0.79.9 and earlier and 18.0.80 through 18.0.80.5 allows local users to execute arbi…
    CVE-2026-67394 (CVSS 9) — A critical local privilege escalation via OS command injection vulnerability has been discovered in Plesk for …
    CVE-2026-65646 (CVSS 8.7) — Improper neutralization of special elements in Plesk allows remote authenticated users to disclose arbitrary l…
    CVE-2026-65642 (CVSS 8.6) — Insecure direct object reference in Plesk 18.0.79.7 and earlier or 18.0.80 through 18.0.80.3, allows remote au…
    CVE-2026-64639 (CVSS 9.3) — Incorrect database cloning process in Plesk from 18.0.52 before 18.0.79.6 and 18.0.80.2 allows a low-privilege…
    CVE-2026-64636 (CVSS 7.7) — An SQL injection vulnerability in Plesk Obsidian up to 18.0.80 for Linux and Windows allows an authenticated u…
    CVE-2026-58046 (CVSS 9.9) — Improper neutralization in the Plesk XML-RPC API allows a remote authenticated low-privileged user to perform …
    CVE-2026-56843 (CVSS 9.9) — Incorrect authorization in the XML-RPC API of WebPros Plesk before 18.0.78.4 allows a low-privileged authentic…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High