Vulnerability index

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Plesk CRITICAL 9.1
CVE-2025-66430

Plesk 18.0 has Incorrect Access Control.

Fix: 18.0.73.5 / 18.0.74.2+
Fix from $2,300 2025-12-12
Plesk HIGH 7.8
CVE-2023-4931

Uncontrolled search path element vulnerability in Plesk Installer affects version 3.27.0.0. A local attacker could execute arbitrary code by injectin…

Mitigation only
Fix from $1,950 2023-11-27
Onyx HIGH 7.5
CVE-2023-43784

Plesk Onyx 17.8.11 has accessKeyId and secretAccessKey fields that are related to an Amazon AWS Firehose component. NOTE: the vendor's position is th…

No fix yet
Fix from $1,950 2023-09-22
Plesk CRITICAL 9.0
CVE-2023-0829

Plesk 17.0 through 18.0.31 version, is vulnerable to a Cross-Site Scripting. A malicious subscription owner (either a customer or an additional user)…

Fix: after 18.0.31
Fix from $2,300 2023-09-20
Obsidian MEDIUM 6.1
CVE-2023-24044

A Host Header Injection issue on the Login page of Plesk Obsidian through 18.0.49 allows attackers to redirect users to malicious websites via a Host…

Fix: after 18.0.49
Fix from $1,600 2023-01-22
Obsidian MEDIUM 6.5
CVE-2022-45130

Plesk Obsidian allows a CSRF attack, e.g., via the /api/v2/cli/commands REST API to change an Admin password. NOTE: Obsidian is a specific version of…

No fix yet
Fix from $1,600 2022-11-10
Plesk HIGH 8.8
CVE-2021-45008

Plesk CMS 18.0.37 is affected by an insecure permissions vulnerability that allows privilege Escalation from user to admin rights. OTE: the vendor st…

No fix yet
Fix from $1,950 2022-02-21
Plesk MEDIUM 6.5
CVE-2021-45007

Plesk 18.0.37 is affected by a Cross Site Request Forgery (CSRF) vulnerability that allows an attacker to insert data on the user and admin panel. NO…

No fix yet
Fix from $1,600 2022-02-20
Obsidian MEDIUM 6.1
CVE-2021-35976

The feature to preview a website in Plesk Obsidian 18.0.0 through 18.0.32 on Linux is vulnerable to reflected XSS via the /plesk-site-preview/ PATH, …

Fix: after 18.0.32
Fix from $1,600 2021-09-10
Obsidian MEDIUM 6.1
CVE-2020-11583

A GET-based XSS reflected vulnerability in Plesk Obsidian 18.0.17 allows remote unauthenticated users to inject arbitrary JavaScript, HTML, or CSS vi…

Mitigation only
Fix from $1,600 2020-08-03
Onyx MEDIUM 6.1
CVE-2020-11584

A GET-based XSS reflected vulnerability in Plesk Onyx 17.8.11 allows remote unauthenticated users to inject arbitrary JavaScript, HTML, or CSS via a …

Mitigation only
Fix from $1,600 2020-08-03
Plesk Server Administrator MEDIUM 5.0
CVE-2001-1222

Plesk Server Administrator (PSA) 1.0 allows remote attackers to obtain PHP source code via an HTTP request containing the target's IP address and a v…

Patch available
Fix from $1,600 2002-03-25